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Data

Family Heptageniidae - Flatheaded 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 Flatheaded Mayflies

Hover over black occurrence boxes to see number of images submitted. Log in to make states, months and boxes clickable.
JanFebMarAprMayJunJulAugSepOctNovDec
Alabama  4421 1 2  
Alberta   7 2 2    
Arizona  1 112     
Arkansas  4   134   
British Columbia2   2141    
California 4416231110 5 2 
Colorado 25  1 2    
Connecticut   1  155   
Delaware   2        
Florida7    12     
Georgia 133 12  1  
Illinois   179273   
Indiana 6324 5     
Iowa    9131242   
Kansas     32     
Kentucky  1452      
Louisiana   2  11    
Maine 2  36241   
Manitoba        1   
Maryland   7224119837  
Massachusetts 329211822103   
Michigan    1161    
Minnesota     3421   
Missouri  13555231  
Montana 11 11814    
JanFebMarAprMayJunJulAugSepOctNovDec
Nebraska     1  31  
Nevada    1       
New Brunswick    1 91    
New Hampshire  1111051523   
New Jersey   16385 2  
New Mexico    1       
New York   1102611821  
North Carolina  428631  21 
North Dakota     32     
Nova Scotia     1      
Ohio    431 1   
Oklahoma   2 3761   
Ontario3  17221810843 
Oregon   31610 102  1
Pennsylvania   22731411543  
Quebec    1577533331  
Rhode Island       10    
Saskatchewan       3    
South Carolina 118 5 12    
Tennessee  823161630205 5 
Texas113724 42   
Vermont  379761 2  
Virginia843230464224834112
Washington   81681231  
West Virginia    23 3 2  
Wisconsin    120125    
JanFebMarAprMayJunJulAugSepOctNovDec
Wyoming     1