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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          1
California  6232013135 2  
Colorado  5   1     
Georgia  31611     
Maine     31     
Maryland3  620       
Massachusetts  2916173     
Missouri       2 1  
Montana 41 42535  2 
New Brunswick      3     
New Hampshire  487382    
New Jersey    14       
New York   5591     
Newfoundland/Labrador     2      
North Carolina  5101       
Ontario6  1252     
Oregon    10155625 1
Pennsylvania  131312     
Quebec    172362    
South Carolina  1         
Tennessee       1 3  
Texas1           
JanFebMarAprMayJunJulAugSepOctNovDec
Vermont  1 52      
Virginia96164254255 6 65
Washington    49612    
Wisconsin     1      
Wyoming      1