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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  6   134   
British Columbia2   2161    
California 4416271111 5 2 
Colorado 25  1 2    
Connecticut   1  155   
Delaware   2        
Florida7    12     
Georgia 133 12  1  
Idaho      1 2   
Illinois   11212473   
Indiana 632415     
Iowa    9161242   
Kansas     34     
Kentucky  14523     
Louisiana   2  31    
Maine 2  36241   
Manitoba        1   
Maryland   7284420848  
Massachusetts 329211824103   
Michigan    1173    
Minnesota     6421   
Missouri  13556231  
JanFebMarAprMayJunJulAugSepOctNovDec
Montana 11 11813    
Nebraska     1  31  
Nevada    1       
New Brunswick    12101    
New Hampshire  1111051523   
New Jersey   16385 2  
New Mexico    1       
New York   1102913821  
North Carolina  4306312 21 
North Dakota     32     
Nova Scotia     1      
Ohio    443 1   
Oklahoma   2 3781   
Ontario3  17271912843 
Oregon   31610 102  1
Pennsylvania   23531431543  
Quebec    1999655161  
Rhode Island       10    
Saskatchewan       3    
South Carolina 11815 12    
Tennessee  823181630205 5 
Texas113745142   
Vermont  379761 2  
Virginia843230464224834112
Washington   81681231  
West Virginia    23 3 2  
JanFebMarAprMayJunJulAugSepOctNovDec
Wisconsin    123145    
Wyoming     1