Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Order Trichoptera - Caddisflies


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 Caddisflies

Hover over black occurrence boxes to see number of images submitted. Log in to make states, months and boxes clickable.
JanFebMarAprMayJunJulAugSepOctNovDec
Alabama  13212318123111592
Alaska  74421191522  
Alberta   2511921541  
Arizona4311812212828161718111
Arkansas   1211945111 
British Columbia139 316164036192214 
California327415210212514110072181718
Colorado11641514302526165  
Connecticut  535281012182  
Delaware    145 32  
Florida10824111354814623
Georgia1 24111392998  
Idaho      233311
Illinois   623391530222  
Indiana 232 211018910   
Iowa 2 11310321082  
Kansas    510106 4  
Kentucky  4 14310662  
Louisiana 27101918161091232
Maine1 54234741393727153
Manitoba6    17692   
Maryland1183133769838244823
Massachusetts427568319525115014011834147
Michigan   214351216129  
Minnesota46912482839131  
JanFebMarAprMayJunJulAugSepOctNovDec
Mississippi 3 22    11 
Missouri  25912161484  
Montana   1771535686 
Nebraska 3  48102 11 
Nevada2 7 661123 2
New Brunswick  2192739241273 
New Hampshire 1292326423719122135
New Jersey4  1338471111135 1
New Mexico  312153 2  
New York52212511058151401016 
Newfoundland/Labrador    41731152   
North Carolina  635252481420945
North Dakota    517671   
Northwest Territories       3    
Nova Scotia   15310155311
Nunavut      2     
Ohio  231512146115  
Oklahoma   698106314  
Ontario511 1351478267641261
Oregon572513294037553070153
Pennsylvania  7254181644341202 
Quebec 3  1052894093911892822
Rhode Island   37493335177  
Saskatchewan    151368   
South Carolina 1497831111 
South Dakota     111 2  
JanFebMarAprMayJunJulAugSepOctNovDec
Tennessee 121527121216112081
Texas26172466293191329155
Utah  3 176593  
Vermont4244151868912 
Virginia845163318658695170471648
Washington1167361833792341654 
West Virginia     18659   
Wisconsin1 116224586212034 
Wyoming    15955   
Yukon Territory  1  194