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

Superfamily Heptagenioidea


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 Heptagenioidea

Hover over black occurrence boxes to see number of images submitted. Log in to make states, months and boxes clickable.
JanFebMarAprMayJunJulAugSepOctNovDec
Alabama  510222432  
Alberta   7 262    
Arizona  1 112     
Arkansas1 6   234   
British Columbia2  12183    
California 44163019172922 
Colorado 25  2862   
Connecticut   246185   
Delaware   2        
Florida7 11 12  3 1
Georgia 169412121  
Idaho      1 2   
Illinois   12113181352  
Indiana 633113521   
Iowa    172430142   
Kansas  5 155 2   
Kentucky  14523     
Louisiana  3612311   
Maine 2  37461   
Manitoba      1 1   
Maryland   2347584521109  
Massachusetts 3212272645203   
Michigan    1573    
Minnesota    19837   
Missouri  137109742  
JanFebMarAprMayJunJulAugSepOctNovDec
Montana 11121816  1 
Nebraska     1229101  
Nevada    12      
New Brunswick    221211   
New Hampshire  1111551833   
New Jersey   19785 2  
New Mexico    113     
New York   5154419991  
North Carolina  631615116623 
North Dakota     32     
Nova Scotia     5      
Ohio    467 1   
Oklahoma   216781   
Ontario31 193848231543 
Oregon   32415412112 1
Pennsylvania   5537560341133 
Quebec    221239067141  
Rhode Island       10    
Saskatchewan       31   
South Carolina 12815 12    
South Dakota       1    
Tennessee  929262438201015 
Texas11379714312 
Vermont  379106112  
Virginia8537316955411941212
Washington   8110101231  
JanFebMarAprMayJunJulAugSepOctNovDec
West Virginia    352512  
Wisconsin    132187    
Wyoming     1 1