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

Family Ephemerellidae - Spiny Crawler Mayflies


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 Spiny Crawler Mayflies

Hover over black occurrence boxes to see number of images submitted. Log in to make states, months and boxes clickable.
JanFebMarAprMayJunJulAugSepOctNovDec
Alberta   326212   
Arizona       3    
Arkansas    2       
British Columbia1   14118   1
California  6233013135 2  
Colorado  5   1     
Connecticut  1  11     
Georgia  33611     
Maine     31     
Maryland3  1228       
Massachusetts  2919183     
Minnesota      2     
Missouri       2 1  
Montana 41 52535  3 
New Brunswick      3     
New Hampshire  487392    
New Jersey    14       
New York   5991     
Newfoundland/Labrador     2      
North Carolina  8104  4    
Ohio      1     
Ontario6  1252     
Oregon   615199625 1
Pennsylvania  542482     
Quebec    2331162    
JanFebMarAprMayJunJulAugSepOctNovDec
South Carolina  1         
Tennessee    3  1 3  
Texas1           
Utah      1     
Vermont  1 52      
Virginia96164557255 6 65
Washington    511613    
Wisconsin  1  1      
Wyoming      1