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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea

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
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
Alabama  510222442  
Alberta   7 262    
Arizona  1 112     
Arkansas1 6   234   
British Columbia2  12186    
California 44183521172922 
Colorado 25  2862   
Connecticut   246285   
Delaware   2        
Florida7 11 12  3 1
Georgia 169412121  
Idaho      1 2   
Illinois   12114181452  
Indiana 633133521   
Iowa    172430142   
Kansas  5 155 2   
Kentucky  14523     
Louisiana  3612311   
Maine 2  37461   
Manitoba      2 1   
Maryland   2948614721109  
Massachusetts 3212273446203   
Michigan    3573    
Minnesota    19937   
Mississippi     1      
JanFebMarAprMayJunJulAugSepOctNovDec
Missouri  137109742  
Montana 11121816  1 
Nebraska     13299201  
Nevada    12      
New Brunswick    221211   
New Hampshire  1111551833   
New Jersey   19785 2  
New Mexico    313     
New York   5154819991  
North Carolina  632815116623 
North Dakota     32     
Nova Scotia     5      
Ohio    761241   
Oklahoma   219781   
Ontario31 194048231543 
Oregon   32515417112 1
Pennsylvania   8687868361133 
Quebec    281269368163  
Rhode Island       10    
Saskatchewan       31   
South Carolina 12815 12    
South Dakota       1    
Tennessee  929262438201115 
Texas11379714312 
Vermont  379106112  
Virginia8537336955411941212
JanFebMarAprMayJunJulAugSepOctNovDec
Washington   8110111231  
West Virginia    552512  
Wisconsin    132187    
Wyoming     1 1    

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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