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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida)

Class Arachnida - Arachnids


The information below is based on images submitted and identified by contributors. Range and date information may be incomplete, overinclusive, or just plain wrong.

Contributed Images Map No Images   Images
Range map for Arachnids
Credits: Generated with MapServer. BugGuide integration kindly provided by Mike Boone.

Hover over black occurrence boxes to see number of images submitted. Log in to make states, months and boxes clickable.
JanFebMarAprMayJunJulAugSepOctNovDec
Alabama403211219426425632232529126613691
Alaska178551041311531055111512
Alberta48354611919723118515881434352
Arizona32939065774280297614071175770671358200
Arkansas2613541352352251521392541906025
British Columbia12368111333312537445435568475365170
California87689417022309256625721912164714721477964650
Colorado3550991793084274453293732134817
Connecticut73238311820910012013079282
Delaware4 1829737474809646138
District of Columbia 1178716171  
Florida815723925881884985858759616697777857
Georgia8167260346462465410343334286185110
Idaho17129443464736063112
Illinois16261612624216145064855153089327
Indiana112432981792851632331891452153
Iowa2934441183554774113002881503115
Kansas1714621151831921571402422385419
Kentucky94641201893954443933994952738752
Louisiana447512413120514923621814018813056
Maine18114913825762969850633727929954
Manitoba5411223379556337814
Maryland10693306674111611919689901087767271150
Massachusetts16818039878011961232987931871598235119
Michigan1448761672233152692172301216331
JanFebMarAprMayJunJulAugSepOctNovDec
Minnesota13810181412892648496337101239
Mississippi3026836810470705899621821
Missouri2446981803543003022573331777310
Montana13122633172931342069667612
Nebraska59345816018013598907111 
Nevada111064111115180858764502319
New Brunswick217447312619210493963673
New Hampshire3638591782362982592651861276535
New Jersey3176152330578785582427498412117103
New Mexico26561201462133322952602562329932
New York4470123255753104686375263634012149
Newfoundland/Labrador1487711817917193602255
North Carolina126204324614691663628586721500200167
North Dakota9 61633472533191371
Northwest Territories    1172    
Nova Scotia  53016445248392441
Nunavut      93    
Ohio292255189369478341385295210696
Oklahoma62111232309500357425368444337189102
Ontario27421742154809057486355372817732
Oregon11910522527138749340239832524212194
Pennsylvania97106364786136314561280111794968322329
Prince Edward Island     3422   
Quebec9617106273444333338424178504
Rhode Island1966810825612095834172
Saskatchewan6203311222640225920514887299
JanFebMarAprMayJunJulAugSepOctNovDec
South Carolina76453612623517825321519116112268
South Dakota 1111225338502217 3
Tennessee31371232233763243143212332127373
Texas44234995413231406135514491261113711871034504
Utah21181121262052223262452051795633
Vermont5152768921251421289664186
Virginia10277228344645608554617721447205147
Washington108203209400614665510480615600164123
West Virginia2173330799060626844225
Wisconsin2215761224228907455517462745312
Wyoming161122407355738836717
Yukon Territory    214368    

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

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