Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Interested in a 2022 BugGuide gathering in New Mexico?

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Previous events


TaxonomyBrowseInfoImagesLinksBooks
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  57212312  
Alberta   7 252    
Arizona  1 112     
Arkansas1 6   234   
British Columbia2   2161    
California 4416301211 5 2 
Colorado 25  122    
Connecticut   142185   
Delaware   2        
Florida7    12    1
Georgia 169 12 21  
Idaho      1 2   
Illinois   1141211103   
Indiana 6327352    
Iowa    14191242   
Kansas  5 154 2   
Kentucky  14523     
Louisiana   41 31    
Maine 2  37241   
Manitoba      1 1   
Maryland   214250371548  
Massachusetts 329211924133   
Michigan    1473    
Minnesota    17731   
Missouri  13676431  
JanFebMarAprMayJunJulAugSepOctNovDec
Montana 11111813    
Nebraska     1 131  
Nevada    1       
New Brunswick    22101    
New Hampshire  1111051623   
New Jersey   16585 2  
New Mexico    1       
New York   1133015821  
North Carolina  6316614321 
North Dakota     32     
Nova Scotia     1      
Ohio    443 1   
Oklahoma   215781   
Ontario3  19362715843 
Oregon   3241221022 1
Pennsylvania   551405021433 
Quebec    211097056121  
Rhode Island       10    
Saskatchewan       3    
South Carolina 11815 12    
Tennessee  92619163420515 
Texas113745142 2 
Vermont  379761 2  
Virginia8435315343311033112
Washington   81681231  
West Virginia    23 4 2  
JanFebMarAprMayJunJulAugSepOctNovDec
Wisconsin    123175    
Wyoming     1 1