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Identifying a Brown Recluse Spider

extended, are a l

dark violin

have only six eyes arranged in three pairs (right); most other

spiders have eight eyes.

are uncommon outside their native range, and bites attributed to these spiders in these outside areas are highly unlmisdiagnosed. Because of their secretive habits, detecting and eliminating brown recluse spiders inside structures can be achallenging and time

common indoors and outdoors only in their native range encompassing parts ofthespiders are encountered in buildings outside their native areas, probablytransported inside the boxes and furniture of people moving from states wherethe spider is common. The “recluse” in brown respider’s secretive habits. Outdoors, brown recluse spiders live in thickgroundcovers (ivy, pachysandra, etc.), dog houses, and under rocks, logs,woodpiles, landscape timbers, and debris. Indoors, these spiders spend thedaytinside heat ducts and registers, and behind or under items stored in closets,garages, or other dark, secluded areas. Their webs are spun in these retreatareas, seldom out in the owalls, and other exposed structural surfaces only during the nighttime hours,when they hunt for prey (live or dead insects).

How dangerous are brown recluse spiders to humans?

Brownspiders and never be bitten. These spiders have small fangs and cannot bite through clothing. Most people are bitten when tspidersa spider in bed. Other bites occur while moving stored items. The bite of a brown recluse spider is usually painless. Severeactielderly, and patients in poor health. Brown recluse spider venom can cause blood clotting in the small blood vessels of thesurroundilesion with a core of dead tissue may develop, spreading or persisting for weeks. With some individuals, the bite wound failheal an

How can I be sure that I have been bitten by a brown recluse spider?

Brown recluse spider bites are not common within their natural range, and are even rarer outside of this area. Bites from thspiders are difficult to con


extended, are a l

dark violin




common indoors and outdoors only in their native range encompassing parts ofthe South Central andspiders are encountered in buildings outside their native areas, probablytransported inside the boxes and furniture of people moving from states wherethe spider is common. The “recluse” in brown respider’s secretive habits. Outdoors, brown recluse spiders live in thickgroundcovers (ivy, pachysandra, etc.), dog houses, and under rocks, logs,woodpiles, landscape timbers, and debris. Indoors, these spiders spend thedaytime hours in retreats in cracks and wall voids, above suspended ceilings,inside heat ducts and registers, and behind or under items stored in closets,garages, or other dark, secluded areas. Their webs are spun in these retreatareas, seldom out in the owalls, and other exposed structural surfaces only during the nighttime hours,when they hunt for prey (live or dead insects).


Brownspiders and never be bitten. These spiders have small fangs and cannot bite through clothing. Most people are bitten when tspidersa spider in bed. Other bites occur while moving stored items. The bite of a brown recluse spider is usually painless. Severeactions to the venom, including fever, chills, dizziness, stomach cramps, and vomiting, are more common in children, theelderly, and patients in poor health. Brown recluse spider venom can cause blood clotting in the small blood vessels of thesurroundilesion with a core of dead tissue may develop, spreading or persisting for weeks. With some individuals, the bite wound failheal an




extended, are a l

dark violin




common indoors and outdoors only in their native range encompassing parts ofSouth Central and

spiders are encountered in buildings outside their native areas, probablytransported inside the boxes and furniture of people moving from states wherethe spider is common. The “recluse” in brown respider’s secretive habits. Outdoors, brown recluse spiders live in thickgroundcovers (ivy, pachysandra, etc.), dog houses, and under rocks, logs,woodpiles, landscape timbers, and debris. Indoors, these spiders spend the

ime hours in retreats in cracks and wall voids, above suspended ceilings,inside heat ducts and registers, and behind or under items stored in closets,garages, or other dark, secluded areas. Their webs are spun in these retreatareas, seldom out in the owalls, and other exposed structural surfaces only during the nighttime hours,when they hunt for prey (live or dead insects).


Brown recluse spiders are not aggressive. It is quite common to live or work in a building where there are many brown reclusespiders and never be bitten. These spiders have small fangs and cannot bite through clothing. Most people are bitten when tspiders wander into shoes, clothing, or bedding at night and become trapped against the skin when a person dresses or rolls overa spider in bed. Other bites occur while moving stored items. The bite of a brown recluse spider is usually painless. Seve

ons to the venom, including fever, chills, dizziness, stomach cramps, and vomiting, are more common in children, theelderly, and patients in poor health. Brown recluse spider venom can cause blood clotting in the small blood vessels of thesurroundilesion with a core of dead tissue may develop, spreading or persisting for weeks. With some individuals, the bite wound failheal and may require skin grafts.




extended, are a l

dark violin-shaped mark on the back. Brown recluse spiders








recluse spiders are not aggressive. It is quite common to live or work in a building where there are many brown reclusespiders and never be bitten. These spiders have small fangs and cannot bite through clothing. Most people are bitten when t

wander into shoes, clothing, or bedding at night and become trapped against the skin when a person dresses or rolls overa spider in bed. Other bites occur while moving stored items. The bite of a brown recluse spider is usually painless. Seve

ons to the venom, including fever, chills, dizziness, stomach cramps, and vomiting, are more common in children, theelderly, and patients in poor health. Brown recluse spider venom can cause blood clotting in the small blood vessels of thesurrounding the bite area. Although the majority of brown recluse spider bites heal completely within three weeks, sometimes alesion with a core of dead tissue may develop, spreading or persisting for weeks. With some individuals, the bite wound fail

d may require skin grafts.




extended, are a l

shaped mark on the back. Brown recluse spiders










ons to the venom, including fever, chills, dizziness, stomach cramps, and vomiting, are more common in children, theelderly, and patients in poor health. Brown recluse spider venom can cause blood clotting in the small blood vessels of the

ng the bite area. Although the majority of brown recluse spider bites heal completely within three weeks, sometimes alesion with a core of dead tissue may develop, spreading or persisting for weeks. With some individuals, the bite wound fail





extended, are a little larger than a quarter (left), and have a

















ittle larger than a quarter (left), and have a




are uncommon outside their native range, and bites attributed to these spiders in these outside areas are highly unlmisdiagnosed. Because of their secretive habits, detecting and eliminating brown recluse spiders inside structures can be achallenging and time-consuming effort.
















are uncommon outside their native range, and bites attributed to these spiders in these outside areas are highly unlmisdiagnosed. Because of their secretive habits, detecting and eliminating brown recluse spiders inside structures can be a

consuming effort.

common indoors and outdoors only in their native range encompassing parts ofSouth Central and Midwestern United States.
















consuming effort.

common indoors and outdoors only in their native range encompassing parts ofMidwestern United States.


ime hours in retreats in cracks and wall voids, above suspended ceilings,inside heat ducts and registers, and behind or under items stored in closets,garages, or other dark, secluded areas. Their webs are spun in these retreatareas, seldom out in the open. Usually, they are encountered crawling on floors,walls, and other exposed structural surfaces only during the nighttime hours,when they hunt for prey (live or dead insects).








Brown recluse spider bites are not common within their natural range, and are even rarer outside of this area. Bites from thspiders are difficult to confirm from the wound alone. Also, diagnosis is difficult because the spider is rarely seen or recovered by






consuming effort.



ime hours in retreats in cracks and wall voids, above suspended ceilings,inside heat ducts and registers, and behind or under items stored in closets,garages, or other dark, secluded areas. Their webs are spun in these retreat

pen. Usually, they are encountered crawling on floors,walls, and other exposed structural surfaces only during the nighttime hours,when they hunt for prey (live or dead insects).








Brown recluse spider bites are not common within their natural range, and are even rarer outside of this area. Bites from thfirm from the wound alone. Also, diagnosis is difficult because the spider is rarely seen or recovered by

y Public Health Center (Provisional), Entomological Sciences Program

COM 410

Identifying a Brown Recluse Spider – adults, with legs




Brown recluse spiders (South Central and Midwestern United States.humans. Although bites are rare, their venom can cause serious wounds. Brown recluse spiders


consuming effort.













blic Health Center (Provisional), Entomological Sciences Program

COM 410

adults, with legs






consuming effort.












Arm lic Health Center (Provisional), Entomological Sciences Program

COM 410-436

adults, with legs






consuming effort.












Army P alth Center (Provisional), Entomological Sciences Program

436-Approved for Public Release, Distribution Unlimited

adults, with legs

















Army Public Center (Provisional), Entomological Sciences Program5158 Blackhawk Road, APG, MD 21010

-3613 / DSN 312Approved for Public Release, Distribution Unlimited

Brown Recluse Spiders

adults, with legs

















Army Public He nter (Provisional), Entomological Sciences Program5158 Blackhawk Road, APG, MD 21010

3613 / DSN 312Approved for Public Release, Distribution Unlimited








spiders are encountered in buildings outside their native areas, probablytransported inside the boxes and furniture of people moving from states wherethe spider is common. The “recluse” in brown recluse spider comes from thespider’s secretive habits. Outdoors, brown recluse spiders live in thickgroundcovers (ivy, pachysandra, etc.), dog houses, and under rocks, logs,woodpiles, landscape timbers, and debris. Indoors, these spiders spend the










Army Public Health r (Provisional), Entomological Sciences Program5158 Blackhawk Road, APG, MD 21010





common indoors and outdoors only in their native range encompassing parts ofOccasionally, brown recluse

spiders are encountered in buildings outside their native areas, probablytransported inside the boxes and furniture of people moving from states where

cluse spider comes from thespider’s secretive habits. Outdoors, brown recluse spiders live in thickgroundcovers (ivy, pachysandra, etc.), dog houses, and under rocks, logs,woodpiles, landscape timbers, and debris. Indoors, these spiders spend the










Army Public Health Ce visional), Entomological Sciences Program5158 Blackhawk Road, APG, MD 21010



Brown recluse spiders (Loxosceles reclusaSouth Central and Midwestern United States.humans. Although bites are rare, their venom can cause serious wounds. Brown recluse spiders






pen. Usually, they are encountered crawling on floors,walls, and other exposed structural surfaces only during the nighttime hours,








Army Public Health Center isional), Entomological Sciences Program5158 Blackhawk Road, APG, MD 21010

3613 / DSN 312-584Approved for Public Release, Distribution Unlimited


Loxosceles reclusaSouth Central and Midwestern United States.humans. Although bites are rare, their venom can cause serious wounds. Brown recluse spiders


What does a brown recluse spider look like?

The body of a brown recluse spider is about 3/8 of an inch long. Withlegs extended, they are a little larger than a U.S. quarter. Their overallcolor ranges from tan to dark brown. The bulbous rear (abdomen) of abrown recluse spider has no markings, adark brown in color. These spiders have a dark, violintheir backs, with the neck of the violin pointing toward the rear of thespider. Brown recluse spiders have only six eyes arranged in threepairs (most otherlight

Where do brown recluse spiders live?

Brown recluse spiders are just one of the many different types ofspiders that live in and around homes and buildings. They are













Army Public Health Center (P l), Entomological Sciences Program5158 Blackhawk Road, APG, MD 21010

584-3613 / Website:Approved for Public Release, Distribution Unlimited





The body of a brown recluse spider is about 3/8 of an inch long. Withlegs extended, they are a little larger than a U.S. quarter. Their overallcolor ranges from tan to dark brown. The bulbous rear (abdomen) of abrown recluse spider has no markings, adark brown in color. These spiders have a dark, violintheir backs, with the neck of the violin pointing toward the rear of thespider. Brown recluse spiders have only six eyes arranged in threepairs (most otherlight-colored, with no stripes, bands, or spines.














Army Public Health Center (Provis Entomological Sciences Program5158 Blackhawk Road, APG, MD 21010

3613 / Website:Approved for Public Release, Distribution Unlimited





The body of a brown recluse spider is about 3/8 of an inch long. Withlegs extended, they are a little larger than a U.S. quarter. Their overallcolor ranges from tan to dark brown. The bulbous rear (abdomen) of abrown recluse spider has no markings, adark brown in color. These spiders have a dark, violintheir backs, with the neck of the violin pointing toward the rear of thespider. Brown recluse spiders have only six eyes arranged in threepairs (most other

colored, with no stripes, bands, or spines.














Army Public Health Center (Provisiona mological Sciences Program5158 Blackhawk Road, APG, MD 21010





















Army Public Health Center (Provisional), ological Sciences Program5158 Blackhawk Road, APG, MD 21010





















Army Public Health Center (Provisional), Ent cal Sciences Program5158 Blackhawk Road, APG, MD 21010

3613 / Website: http://phc.amedd.army.milApproved for Public Release, Distribution Unlimited


Loxosceles reclusa), also known as fiddle back spiders, are native to theSouth Central and Midwestern United States.humans. Although bites are rare, their venom can cause serious wounds. Brown recluse spiders



The body of a brown recluse spider is about 3/8 of an inch long. Withlegs extended, they are a little larger than a U.S. quarter. Their overallcolor ranges from tan to dark brown. The bulbous rear (abdomen) of abrown recluse spider has no markings, adark brown in color. These spiders have a dark, violintheir backs, with the neck of the violin pointing toward the rear of thespider. Brown recluse spiders have only six eyes arranged in threepairs (most other spiders have eight eyes). Their legs are uniformly





transported inside the boxes and furniture of people moving from states wherecluse spider comes from the

groundcovers (ivy, pachysandra, etc.), dog houses, and under rocks, logs,woodpiles, landscape timbers, and debris. Indoors, these spiders spend the









Army Public Health Center (Provisional), Entomo Sciences Program5158 Blackhawk Road, APG, MD 21010-

http://phc.amedd.army.milApproved for Public Release, Distribution Unlimited


), also known as fiddle back spiders, are native to theSouth Central and Midwestern United States. These spiders are potentially dangerous tohumans. Although bites are rare, their venom can cause serious wounds. Brown recluse spiders



The body of a brown recluse spider is about 3/8 of an inch long. Withlegs extended, they are a little larger than a U.S. quarter. Their overallcolor ranges from tan to dark brown. The bulbous rear (abdomen) of abrown recluse spider has no markings, adark brown in color. These spiders have a dark, violintheir backs, with the neck of the violin pointing toward the rear of thespider. Brown recluse spiders have only six eyes arranged in three

spiders have eight eyes). Their legs are uniformlycolored, with no stripes, bands, or spines.




transported inside the boxes and furniture of people moving from states wherecluse spider comes from the

woodpiles, landscape timbers, and debris. Indoors, these spiders spend theime hours in retreats in cracks and wall voids, above suspended ceilings,

garages, or other dark, secluded areas. Their webs are spun in these retreatpen. Usually, they are encountered crawling on floors,

walls, and other exposed structural surfaces only during the nighttime hours,






Army Public Health Center (Provisional), Entomologic nces Program-5403



), also known as fiddle back spiders, are native to theThese spiders are potentially dangerous to

humans. Although bites are rare, their venom can cause serious wounds. Brown recluse spidersare uncommon outside their native range, and bites attributed to these spiders in these outside areas are highly unlmisdiagnosed. Because of their secretive habits, detecting and eliminating brown recluse spiders inside structures can be a






pen. Usually, they are encountered crawling on floors,






Army Public Health Center (Provisional), Entomological es Program5403














Army Public Health Center (Provisional), Entomological Scie gram


Brown Recluse Range

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Central and Midwe













Army Public Health Center (Provisional), Entomological Science ram

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Brown Recluse Range


Central and Midwe













Army Public Health Center (Provisional), Entomological Sciences P


Brown Recluse Range


Central and Midwe













Army Public Health Center (Provisional), Entomological Sciences ProgArmy Public Health Center, Entomological Sciences Division


Brown Recluse Range


Central and Midwe













Brown Recluse Range


Central and Midwe




The body of a brown recluse spider is about 3/8 of an inch long. Withlegs extended, they are a little larger than a U.S. quarter. Their overallcolor ranges from tan to dark brown. The bulbous rear (abdomen) of abrown recluse spider has no markings, and can vary from cream todark brown in color. These spiders have a dark, violintheir backs, with the neck of the violin pointing toward the rear of thespider. Brown recluse spiders have only six eyes arranged in three









SHEET

Brown Recluse Range


Central and Midwestern United States




The body of a brown recluse spider is about 3/8 of an inch long. Withlegs extended, they are a little larger than a U.S. quarter. Their overallcolor ranges from tan to dark brown. The bulbous rear (abdomen) of a

nd can vary from cream todark brown in color. These spiders have a dark, violintheir backs, with the neck of the violin pointing toward the rear of thespider. Brown recluse spiders have only six eyes arranged in three








F ET

Brown Recluse Range (shaded portion of map)


stern United States













FACT

(shaded portion of map)


stern United States





spiders have eight eyes). Their legs are uniformly







FACT SHFACT SHEET 18-027-0317



stern United States


humans. Although bites are rare, their venom can cause serious wounds. Brown recluse spidersare uncommon outside their native range, and bites attributed to these spiders in these outside areas are highly unlikely and oftenmisdiagnosed. Because of their secretive habits, detecting and eliminating brown recluse spiders inside structures can be a


nd can vary from cream todark brown in color. These spiders have a dark, violin-shaped mark ontheir backs, with the neck of the violin pointing toward the rear of thespider. Brown recluse spiders have only six eyes arranged in three








7



stern United States


humans. Although bites are rare, their venom can cause serious wounds. Brown recluse spidersikely and often

misdiagnosed. Because of their secretive habits, detecting and eliminating brown recluse spiders inside structures can be a


nd can vary from cream toshaped mark on

their backs, with the neck of the violin pointing toward the rear of thespider. Brown recluse spiders have only six eyes arranged in three








15



stern United States.























Brown recluse spiders are just one of the many different types of


wander into shoes, clothing, or bedding at night and become trapped against the skin when a person dresses or rolls overa spider in bed. Other bites occur while moving stored items. The bite of a brown recluse spider is usually painless. Severe

ons to the venom, including fever, chills, dizziness, stomach cramps, and vomiting, are more common in children, theelderly, and patients in poor health. Brown recluse spider venom can cause blood clotting in the small blood vessels of the skin

ng the bite area. Although the majority of brown recluse spider bites heal completely within three weeks, sometimes alesion with a core of dead tissue may develop, spreading or persisting for weeks. With some individuals, the bite wound fails to

Brown recluse spider bites are not common within their natural range, and are even rarer outside of this area. Bites from thesefirm from the wound alone. Also, diagnosis is difficult because the spider is rarely seen or recovered by

(shaded portion of map) –

), also known as fiddle back spiders, are native to the






recluse spiders are not aggressive. It is quite common to live or work in a building where there are many brown reclusespiders and never be bitten. These spiders have small fangs and cannot bite through clothing. Most people are bitten when the

wander into shoes, clothing, or bedding at night and become trapped against the skin when a person dresses or rolls over

skinng the bite area. Although the majority of brown recluse spider bites heal completely within three weeks, sometimes a

s to

esefirm from the wound alone. Also, diagnosis is difficult because the spider is rarely seen or recovered by

–

), also known as fiddle back spiders, are native to the



shaped mark on

hewander into shoes, clothing, or bedding at night and become trapped against the skin when a person dresses or rolls over

firm from the wound alone. Also, diagnosis is difficult because the spider is rarely seen or recovered by

the bite victim. The bite itself is generally painless, and victims are usually unawarethey have been bitten until about eight hours later, when thred, swollen, and tender. Only approximately 10% of bites progress to a gray topurple discoloration at the bite site. This site is encircled by a ring of blanched skinthat in turn is surrounded by a large area of redness, produciblue" sign typical of a brown recluse spider bite. Many medical conditions mimicthe "red, white, and blue" sore from a brown recluse spider bite, including bacterial(including outbreaks of drugfungal infections, gangrene, and diabetic or pressure ulcers. If you suspect youhave been bitten by a brown recluse spider, apply ice to the bite site, elevate theaffected area, and seek medical attention immediately. If you are lucky ecapture the spider, try to save it for identification. Even a badly crushed specimencan be identified by an expert.

How can I avoid being bitten by a brown recluse spider?

To lessen the chances of coming into contact with or being bitten by a brownrecluse spider, practice the following:

Where can I get more information on brown recluse spiders?

Drawings/Photographs courtesy of University of Kentucky Entomology, University of Nebraska, Cooperative Extension Service, an

Riverside

Glue Traps for Monitoring and Control

pieces of sticky cardboard can be used to detect

infestations and to capture and kill large

numbers of brown recluse spiders




Keep shoes and clothingEliminate as many of the hiding places as possible for spiders and their prey; remove excess clutter.Store seldomKeep firewood piles as far fromMake sure that beds do not touch walls, drapes, and other furniture; ensure that skirts and bedspreads do not contact thefloor.In buildings, install sealant and weather stripping around thresholds and gaps where utilities enter strucTake proper precautions: wear gloves when handling, rocks, crates, and lumber, while working in landscape plantings orwhen moving materials that have been in contact with the ground.Spiders fou

removing potential outdoor harborages are all part of a good sanitation program for brown recluse spider control.Chemical Approachescrack, crevice, or spot treatments indoors and along the base of foundations outdoors. Consideration should be given to thefact that some pesticides and application techniques might encourage spidersexposed surfaces during daylight hours.


Contact the Army21010http://phc.amedd.army.mil/topics/enviroReferences:Hedges, S.A., and Lacey, M.S.Ohio, pp. 146Potter, M.F.http://www.uky.edu/Agriculture/Entomology/entfacts/struct/ef631.htm


Riverside











Contact the Army21010http://phc.amedd.army.mil/topics/enviroReferences:Hedges, S.A., and Lacey, M.S.Ohio, pp. 146Potter, M.F.http://www.uky.edu/Agriculture/Entomology/entfacts/struct/ef631.htm


Riverside

Use of trademarked name does











Contact the Army21010-5403: DSNhttp://phc.amedd.army.mil/topics/enviroReferences:Hedges, S.A., and Lacey, M.S.Ohio, pp. 146Potter, M.F.http://www.uky.edu/Agriculture/Entomology/entfacts/struct/ef631.htm










Keep shoes and clothingEliminate as many of the hiding places as possible for spiders and their prey; remove excess clutter.Store seldomKeep firewood piles as far fromMake sure that beds do not touch walls, drapes, and other furniture; ensure that skirts and bedspreads do not contact the

In buildings, install sealant and weather stripping around thresholds and gaps where utilities enter strucTake proper precautions: wear gloves when handling, rocks, crates, and lumber, while working in landscape plantings orwhen moving materials that have been in contact with the ground.Spiders fou



Contact the Army5403: DSN

http://phc.amedd.army.mil/topics/enviroReferences:Hedges, S.A., and Lacey, M.S.Ohio, pp. 146Potter, M.F.http://www.uky.edu/Agriculture/Entomology/entfacts/struct/ef631.htm










Keep shoes and clothingEliminate as many of the hiding places as possible for spiders and their prey; remove excess clutter.Store seldom-used items in tightly sealed plastic storage containers.Keep firewood piles as far fromMake sure that beds do not touch walls, drapes, and other furniture; ensure that skirts and bedspreads do not contact the

In buildings, install sealant and weather stripping around thresholds and gaps where utilities enter strucTake proper precautions: wear gloves when handling, rocks, crates, and lumber, while working in landscape plantings orwhen moving materials that have been in contact with the ground.Spiders found on your body should be brushed off, not swatted.




http://phc.amedd.army.mil/topics/enviroReferences:Hedges, S.A., and Lacey, M.S.Ohio, pp. 146-161.Potter, M.F. 2005. Brown Recluse Spider. University of Kentucky College of Agriculture, Department of Entomology,http://www.uky.edu/Agriculture/Entomology/entfacts/struct/ef631.htm










Keep shoes and clothingEliminate as many of the hiding places as possible for spiders and their prey; remove excess clutter.

used items in tightly sealed plastic storage containers.Keep firewood piles as far fromMake sure that beds do not touch walls, drapes, and other furniture; ensure that skirts and bedspreads do not contact the

In buildings, install sealant and weather stripping around thresholds and gaps where utilities enter strucTake proper precautions: wear gloves when handling, rocks, crates, and lumber, while working in landscape plantings orwhen moving materials that have been in contact with the ground.

nd on your body should be brushed off, not swatted.




http://phc.amedd.army.mil/topics/enviro

Hedges, S.A., and Lacey, M.S.161.

2005. Brown Recluse Spider. University of Kentucky College of Agriculture, Department of Entomology,http://www.uky.edu/Agriculture/Entomology/entfacts/struct/ef631.htm
















Contact the Army Public Health5403: DSN (312)


Hedges, S.A., and Lacey, M.S.161.








the bite victim. The bite itself is generally painless, and victims are usually unawarethey have been bitten until about eight hours later, when thred, swollen, and tender. Only approximately 10% of bites progress to a gray topurple discoloration at the bite site. This site is encircled by a ring of blanched skinthat in turn is surrounded by a large area of redness, produciblue" sign typical of a brown recluse spider bite. Many medical conditions mimicthe "red, white, and blue" sore from a brown recluse spider bite, including bacterial(including outbreaks of drug-fungal infections, gangrene, and diabetic or pressure ulcers. If you suspect youhave been bitten by a brown recluse spider, apply ice to the bite site, elevate theaffected area, and seek medical attention immediately. If you are lucky ecapture the spider, try to save it for identification. Even a badly crushed specimencan be identified by an expert.







removing potential outdoor harborages are all part of a good sanitation program for brown recluse spider control.Chemical Approaches. Pesticides are an important tool for brown recluscrack, crevice, or spot treatments indoors and along the base of foundations outdoors. Consideration should be given to thefact that some pesticides and application techniques might encourage spidersexposed surfaces during daylight hours.


Public Health(312)


Hedges, S.A., and Lacey, M.S.



Use of trademarked name doesFor more i




numbers of brown recluse spiders.

the bite victim. The bite itself is generally painless, and victims are usually unawarethey have been bitten until about eight hours later, when thred, swollen, and tender. Only approximately 10% of bites progress to a gray topurple discoloration at the bite site. This site is encircled by a ring of blanched skinthat in turn is surrounded by a large area of redness, produciblue" sign typical of a brown recluse spider bite. Many medical conditions mimicthe "red, white, and blue" sore from a brown recluse spider bite, including bacterial

-resistant infections byfungal infections, gangrene, and diabetic or pressure ulcers. If you suspect youhave been bitten by a brown recluse spider, apply ice to the bite site, elevate theaffected area, and seek medical attention immediately. If you are lucky ecapture the spider, try to save it for identification. Even a badly crushed specimencan be identified by an expert.



Keep shoes and clothing off the floors; shake them out before you use them.Eliminate as many of the hiding places as possible for spiders and their prey; remove excess clutter.




removing potential outdoor harborages are all part of a good sanitation program for brown recluse spider control.. Pesticides are an important tool for brown reclus

crack, crevice, or spot treatments indoors and along the base of foundations outdoors. Consideration should be given to thefact that some pesticides and application techniques might encourage spidersexposed surfaces during daylight hours.


Public Health(312) 584





Use of trademarked name doesFor more i





resistant infections byfungal infections, gangrene, and diabetic or pressure ulcers. If you suspect youhave been bitten by a brown recluse spider, apply ice to the bite site, elevate theaffected area, and seek medical attention immediately. If you are lucky ecapture the spider, try to save it for identification. Even a badly crushed specimen



off the floors; shake them out before you use them.Eliminate as many of the hiding places as possible for spiders and their prey; remove excess clutter.







Public Health584-3613, CM (410) 436





Use of trademarked name does not imply endorsement by the U.S. Army but is intended only to assist in identification of a specific product.For more information please consult the

Glue Traps for Monitoring and Control – thin








used items in tightly sealed plastic storage containers.Keep firewood piles as far from a home as possible.Make sure that beds do not touch walls, drapes, and other furniture; ensure that skirts and bedspreads do not contact the






Public Health Center (3613, CM (410) 436


Hedges, S.A., and Lacey, M.S. 2001. Field Guide for the Management of Urban Spiders. Franzak & Foster Co., Cleveland,



not imply endorsement by the U.S. Army but is intended only to assist in identification of a specific product.nformation please consult the

thin





To lessen the chances of coming into contact with or being bitten by a brown


used items in tightly sealed plastic storage containers.a home as possible.

Make sure that beds do not touch walls, drapes, and other furniture; ensure that skirts and bedspreads do not contact the






Center (3613, CM (410) 436


2001. Field Guide for the Management of Urban Spiders. Franzak & Foster Co., Cleveland,




thin














Center (APHC3613, CM (410) 436

http://phc.amedd.army.mil/topics/envirohealth/epm/Pages/default.aspx














What can I do to get rid ofquarters?

The presence of these spiders represents a potential health threat. Always cwith Preventive Medicine Activity personnel at your supporting clinic to confirm thatyou have brown recluse spiders andinside a building.brown recluse spiders inside structures can be a challenging and timeeffort. Spesticides for brown recluse spider control inside a building.tape (placed in corners and along wall/floor junctures, especially behind furnitureand clutter) is a critical part of a brown recluse spider control program. The moreglue traps used the better. Liberal use of these traps should reveal “hot spots”where brown recluse spiders are most abundant and will capture and kill largenumbers of




APHC3613, CM (410) 436

health/epm/Pages/default.aspx















The presence of these spiders represents a potential health threat. Always cwith Preventive Medicine Activity personnel at your supporting clinic to confirm thatyou have brown recluse spiders andinside a building.brown recluse spiders inside structures can be a challenging and timeeffort. Spesticides for brown recluse spider control inside a building.tape (placed in corners and along wall/floor junctures, especially behind furnitureand clutter) is a critical part of a brown recluse spider control program. The moreglue traps used the better. Liberal use of these traps should reveal “hot spots”where brown recluse spiders are most abundant and will capture and kill largenumbers of


crack, crevice, or spot treatments indoors and along the base of foundations outdoors. Consideration should be given to thefact that some pesticides and application techniques might encourage spiders


APHC), Entomological Sciences Program, Aberdeen Proving Ground, Maryland3613, CM (410) 436







resistant infections by Staphylococfungal infections, gangrene, and diabetic or pressure ulcers. If you suspect youhave been bitten by a brown recluse spider, apply ice to the bite site, elevate theaffected area, and seek medical attention immediately. If you are lucky ecapture the spider, try to save it for identification. Even a badly crushed specimen









The presence of these spiders represents a potential health threat. Always cwith Preventive Medicine Activity personnel at your supporting clinic to confirm thatyou have brown recluse spiders andinside a building.brown recluse spiders inside structures can be a challenging and timeeffort. Spesticides for brown recluse spider control inside a building.

tape (placed in corners and along wall/floor junctures, especially behind furnitureand clutter) is a critical part of a brown recluse spider control program. The moreglue traps used the better. Liberal use of these traps should reveal “hot spots”where brown recluse spiders are most abundant and will capture and kill largenumbers of




), Entomological Sciences Program, Aberdeen Proving Ground, Maryland3613, CM (410) 436-







Staphylococfungal infections, gangrene, and diabetic or pressure ulcers. If you suspect youhave been bitten by a brown recluse spider, apply ice to the bite site, elevate theaffected area, and seek medical attention immediately. If you are lucky ecapture the spider, try to save it for identification. Even a badly crushed specimen









The presence of these spiders represents a potential health threat. Always cwith Preventive Medicine Activity personnel at your supporting clinic to confirm thatyou have brown recluse spiders andinside a building.brown recluse spiders inside structures can be a challenging and timeeffort. Seek the assistance of the Installationpesticides for brown recluse spider control inside a building.

Nonchemical Approachestape (placed in corners and along wall/floor junctures, especially behind furnitureand clutter) is a critical part of a brown recluse spider control program. The moreglue traps used the better. Liberal use of these traps should reveal “hot spots”where brown recluse spiders are most abundant and will capture and kill largenumbers of




), Entomological Sciences Program, Aberdeen Proving Ground, Maryland-3613: FAX






the bite victim. The bite itself is generally painless, and victims are usually unawarethey have been bitten until about eight hours later, when the bite site may becomered, swollen, and tender. Only approximately 10% of bites progress to a gray topurple discoloration at the bite site. This site is encircled by a ring of blanched skinthat in turn is surrounded by a large area of redness, produciblue" sign typical of a brown recluse spider bite. Many medical conditions mimicthe "red, white, and blue" sore from a brown recluse spider bite, including bacterial

Staphylococfungal infections, gangrene, and diabetic or pressure ulcers. If you suspect youhave been bitten by a brown recluse spider, apply ice to the bite site, elevate theaffected area, and seek medical attention immediately. If you are lucky ecapture the spider, try to save it for identification. Even a badly crushed specimen




used items in tightly sealed plastic storage containers.





The presence of these spiders represents a potential health threat. Always cwith Preventive Medicine Activity personnel at your supporting clinic to confirm thatyou have brown recluse spiders andinside a building.brown recluse spiders inside structures can be a challenging and time

eek the assistance of the Installationpesticides for brown recluse spider control inside a building.

Nonchemical Approachestape (placed in corners and along wall/floor junctures, especially behind furnitureand clutter) is a critical part of a brown recluse spider control program. The moreglue traps used the better. Liberal use of these traps should reveal “hot spots”where brown recluse spiders are most abundant and will capture and kill largenumbers of spiders. Frequent vacuuming, repacking and sealing stored items, and




), Entomological Sciences Program, Aberdeen Proving Ground, Maryland3613: FAX






the bite victim. The bite itself is generally painless, and victims are usually unawaree bite site may become

red, swollen, and tender. Only approximately 10% of bites progress to a gray topurple discoloration at the bite site. This site is encircled by a ring of blanched skinthat in turn is surrounded by a large area of redness, producing the "red, white, andblue" sign typical of a brown recluse spider bite. Many medical conditions mimicthe "red, white, and blue" sore from a brown recluse spider bite, including bacterial

Staphylococcus aureusfungal infections, gangrene, and diabetic or pressure ulcers. If you suspect youhave been bitten by a brown recluse spider, apply ice to the bite site, elevate theaffected area, and seek medical attention immediately. If you are lucky ecapture the spider, try to save it for identification. Even a badly crushed specimen







What can I do to get rid of

The presence of these spiders represents a potential health threat. Always cwith Preventive Medicine Activity personnel at your supporting clinic to confirm thatyou have brown recluse spiders andinside a building.brown recluse spiders inside structures can be a challenging and time


Nonchemical Approachestape (placed in corners and along wall/floor junctures, especially behind furnitureand clutter) is a critical part of a brown recluse spider control program. The moreglue traps used the better. Liberal use of these traps should reveal “hot spots”where brown recluse spiders are most abundant and will capture and kill large

spiders. Frequent vacuuming, repacking and sealing stored items, andremoving potential outdoor harborages are all part of a good sanitation program for brown recluse spider control.

. Pesticides are an important tool for brown recluscrack, crevice, or spot treatments indoors and along the base of foundations outdoors. Consideration should be given to thefact that some pesticides and application techniques might encourage spiders


), Entomological Sciences Program, Aberdeen Proving Ground, Maryland3613: FAX





not imply endorsement by the U.S. Army but is intended only to assist in identification of a specific product.nformation please consult the APHC website


red, swollen, and tender. Only approximately 10% of bites progress to a gray topurple discoloration at the bite site. This site is encircled by a ring of blanched skin

ng the "red, white, andblue" sign typical of a brown recluse spider bite. Many medical conditions mimicthe "red, white, and blue" sore from a brown recluse spider bite, including bacterial

cus aureusfungal infections, gangrene, and diabetic or pressure ulcers. If you suspect youhave been bitten by a brown recluse spider, apply ice to the bite site, elevate theaffected area, and seek medical attention immediately. If you are lucky ecapture the spider, try to save it for identification. Even a badly crushed specimen








The presence of these spiders represents a potential health threat. Always cwith Preventive Medicine Activity personnel at your supporting clinic to confirm thatyou have brown recluse spiders andinside a building. Because of their secretive habits, detecting and eliminatingbrown recluse spiders inside structures can be a challenging and time






), Entomological Sciences Program, Aberdeen Proving Ground, Maryland3613: FAX –





not imply endorsement by the U.S. Army but is intended only to assist in identification of a specific product.APHC website




cus aureusfungal infections, gangrene, and diabetic or pressure ulcers. If you suspect youhave been bitten by a brown recluse spider, apply ice to the bite site, elevate theaffected area, and seek medical attention immediately. If you are lucky ecapture the spider, try to save it for identification. Even a badly crushed specimen








The presence of these spiders represents a potential health threat. Always cwith Preventive Medicine Activity personnel at your supporting clinic to confirm thatyou have brown recluse spiders and

Because of their secretive habits, detecting and eliminatingbrown recluse spiders inside structures can be a challenging and time





), Entomological Sciences Program, Aberdeen Proving Ground, Maryland2037;









cus aureusfungal infections, gangrene, and diabetic or pressure ulcers. If you suspect youhave been bitten by a brown recluse spider, apply ice to the bite site, elevate theaffected area, and seek medical attention immediately. If you are lucky enough tocapture the spider, try to save it for identification. Even a badly crushed specimen





In buildings, install sealant and weather stripping around thresholds and gaps where utilities enter strucTake proper precautions: wear gloves when handling, rocks, crates, and lumber, while working in landscape plantings or

Look before you reach, into, under, over or around!











2005. Brown Recluse Spider. University of Kentucky College of Agriculture, Department of Entomology,http://www.uky.edu/Agriculture/Entomology/entfacts/struct/ef631.htm,






cus aureus) andfungal infections, gangrene, and diabetic or pressure ulcers. If you suspect youhave been bitten by a brown recluse spider, apply ice to the bite site, elevate the

nough tocapture the spider, try to save it for identification. Even a badly crushed specimen






What can I do to get rid of brown recluse spiders in my workplace or






. Pesticides are an important tool for brown recluse spider elimination. Insecticides can be applied ascrack, crevice, or spot treatments indoors and along the base of foundations outdoors. Consideration should be given to thefact that some pesticides and application techniques might encourage spiders


health/epm/Pages/default.aspx.


2005. Brown Recluse Spider. University of Kentucky College of Agriculture, Department of Entomology,, pp. 1


not imply endorsement by the U.S. Army but is intended only to assist in identification of a specific product.APHC website - http://phc.amedd.army.mil




) andfungal infections, gangrene, and diabetic or pressure ulcers. If you suspect youhave been bitten by a brown recluse spider, apply ice to the bite site, elevate the







brown recluse spiders in my workplace or






e spider elimination. Insecticides can be applied ascrack, crevice, or spot treatments indoors and along the base of foundations outdoors. Consideration should be given to thefact that some pesticides and application techniques might encourage spiders

), Entomological Sciences Program, Aberdeen Proving Ground, Maryland


2005. Brown Recluse Spider. University of Kentucky College of Agriculture, Department of Entomology,pp. 1-8.


not imply endorsement by the U.S. Army but is intended only to assist in identification of a specific product.http://phc.amedd.army.mil




) andfungal infections, gangrene, and diabetic or pressure ulcers. If you suspect youhave been bitten by a brown recluse spider, apply ice to the bite site, elevate the










Nonchemical Approaches. Monitoring by setting out glue boards or stickytape (placed in corners and along wall/floor junctures, especially behind furnitureand clutter) is a critical part of a brown recluse spider control program. The moreglue traps used the better. Liberal use of these traps should reveal “hot spots”where brown recluse spiders are most abundant and will capture and kill large


e spider elimination. Insecticides can be applied ascrack, crevice, or spot treatments indoors and along the base of foundations outdoors. Consideration should be given to thefact that some pesticides and application techniques might encourage spiders to relocate their retreats or to wander on



2005. Brown Recluse Spider. University of Kentucky College of Agriculture, Department of Entomology,8.



the bite victim. The bite itself is generally painless, and victims are usually unaware

purple discoloration at the bite site. This site is encircled by a ring of blanched skinng the "red, white, and

Eliminate as many of the hiding places as possible for spiders and their prey; remove excess clutter.





The presence of these spiders represents a potential health threat. Always cwith Preventive Medicine Activity personnel at your supporting clinic to confirm thatyou have brown recluse spiders and/or obtain identification of any spiders found



. Monitoring by setting out glue boards or stickytape (placed in corners and along wall/floor junctures, especially behind furnitureand clutter) is a critical part of a brown recluse spider control program. The moreglue traps used the better. Liberal use of these traps should reveal “hot spots”where brown recluse spiders are most abundant and will capture and kill large


e spider elimination. Insecticides can be applied ascrack, crevice, or spot treatments indoors and along the base of foundations outdoors. Consideration should be given to the

to relocate their retreats or to wander on



2005. Brown Recluse Spider. University of Kentucky College of Agriculture, Department of Entomology,



Misdiagnoses of Brown Recluse Spider Bites

–

from a brown recluse spider bite (rig

including fungal and bacterial (left) infections.






The presence of these spiders represents a potential health threat. Always cwith Preventive Medicine Activity personnel at your supporting clinic to confirm that

/or obtain identification of any spiders foundBecause of their secretive habits, detecting and eliminating

brown recluse spiders inside structures can be a challenging and timeeek the assistance of the Installation

pesticides for brown recluse spider control inside a building.. Monitoring by setting out glue boards or sticky

tape (placed in corners and along wall/floor junctures, especially behind furnitureand clutter) is a critical part of a brown recluse spider control program. The moreglue traps used the better. Liberal use of these traps should reveal “hot spots”where brown recluse spiders are most abundant and will capture and kill large










many medical conditions look like the wound










brown recluse spiders inside structures can be a challenging and timeeek the assistance of the Installation






















brown recluse spiders inside structures can be a challenging and timePest Control Office before applying






















































not imply endorsement by the U.S. Army but is intended only to assist in identification of a specific product.





















Drawings/Photographs courtesy of University of Kentucky Entomology, University of Nebraska, Cooperative Extension Service, and University of California







In buildings, install sealant and weather stripping around thresholds and gaps where utilities enter structures.Take proper precautions: wear gloves when handling, rocks, crates, and lumber, while working in landscape plantings or














d University of California







tures.Take proper precautions: wear gloves when handling, rocks, crates, and lumber, while working in landscape plantings or




















tures.Take proper precautions: wear gloves when handling, rocks, crates, and lumber, while working in landscape plantings or

















from a brown recluse spider bite (right),



Take proper precautions: wear gloves when handling, rocks, crates, and lumber, while working in landscape plantings orLook before you reach, into, under, over or around!




brown recluse spiders inside structures can be a challenging and time-consumingPest Control Office before applying












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consumingPest Control Office before applying


spiders. Frequent vacuuming, repacking and sealing stored items, and












The presence of these spiders represents a potential health threat. Always consultwith Preventive Medicine Activity personnel at your supporting clinic to confirm that













Take proper precautions: wear gloves when handling, rocks, crates, and lumber, while working in landscape plantings or

onsultwith Preventive Medicine Activity personnel at your supporting clinic to confirm that







onsultwith Preventive Medicine Activity personnel at your supporting clinic to confirm that


. Monitoring by setting out glue boards or sticky

and clutter) is a critical part of a brown recluse spider control program. The more




brown recluse spiders - phc.amedd.army.mil resource library... · how dangerous are brown recluse...

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