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

Order Ephemeroptera - 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 Mayflies
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  8127128957 2
Alaska    1135     
Alberta   13241415116   
Arizona1312212318919211939
Arkansas1 18338317113  
British Columbia5 11627358051196 3
California8286583141851084151314012
Colorado 22512517272675  
Connecticut  3969799   
Delaware   24112     
District of Columbia    2       
Florida181216151011137816915
Georgia3619241917118932 
Idaho   321636   
Illinois  110363240442222 
Indiana 997161513322  
Iowa 2 9295962348   
Kansas  5 361394   
Kentucky  1419982    
Louisiana 3810951138  1
Maine 22517191114513 1
Manitoba1   27764   
Maryland4 11671051011055432123 
Massachusetts 1611831311097966251  
Michigan   81219371012  
JanFebMarAprMayJunJulAugSepOctNovDec
Minnesota    847371712   
Mississippi  2 311  1  
Missouri  18824241996  
Montana 56519728822 6 
Nebraska 7 58194933221  
Nevada73623511    
New Brunswick    67272112 
New Hampshire 2115559245213133  
New Jersey  154341814843  
New Mexico42423619612531
New York  230638360282231 
Newfoundland/Labrador    151425    
North Carolina 428552328154617552
North Dakota    16196 1  
Northwest Territories     32     
Nova Scotia   1 7511   
Ohio  1314152875 1 
Oklahoma   43271521331 
Ontario104233410284652394 
Oregon59142355474641222543
Pennsylvania 31740118118108541533 
Quebec    762652391398512  
Rhode Island   22412297   
Saskatchewan    91124221 2 
South Carolina 210174711231  
South Dakota   2   11   
JanFebMarAprMayJunJulAugSepOctNovDec
Tennessee 22240364074291795 
Texas442432693811252927184
Utah   2 46102   
Vermont  710232112335  
Virginia213510211416016511752105261017
Washington  4362530354165  
West Virginia   5122410612  
Wisconsin  18195548124   
Wyoming   1 6474   
Yukon Territory    11      

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.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
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