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Data

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

Hover over black occurrence boxes to see number of images submitted. Log in to make states, months and boxes clickable.
JanFebMarAprMayJunJulAugSepOctNovDec
Alabama  8127128937 2
Alaska    1135     
Alberta   13241414116   
Arizona1312212318917171939
Arkansas1 18337317113  
British Columbia5 11626327951195 3
California528618313281105414923301
Colorado 2259516262664  
Connecticut  3369599   
Delaware   24112     
District of Columbia    2       
Florida1810141310810787913
Georgia361724191498932 
Idaho   321336   
Illinois  110363138412122 
Indiana 997131513322  
Iowa 2 9285658298   
Kansas  5 361394   
Kentucky  1419972    
Louisiana 3310951137  1
Maine 22517191114513 1
Manitoba1   17554   
Maryland3 96110496985331122 
Massachusetts 161177130987563241  
Michigan   4614371012  
JanFebMarAprMayJunJulAugSepOctNovDec
Minnesota    847371712   
Mississippi  2 3 1  1  
Missouri  18824241995  
Montana 56519728821 6 
Nebraska 7 2343431111  
Nevada73623511    
New Brunswick    67272112 
New Hampshire 2115559245213133  
New Jersey  154331814843  
New Mexico4242161864531
New York  22560795728223  
Newfoundland/Labrador    151425    
North Carolina 428542126144517452
North Dakota    16196 1  
Northwest Territories     32     
Nova Scotia   1 2411   
Ohio  1311152335 1 
Oklahoma   43241521331 
Ontario10423339183552394 
Oregon191423514539342220 3
Pennsylvania 3333102115100521533 
Quebec    602542351388310  
Rhode Island   22412297   
Saskatchewan    9112322  2 
South Carolina 29174711231  
South Dakota   2   1    
JanFebMarAprMayJunJulAugSepOctNovDec
Tennessee 22239364073291695 
Texas442031683810252826124
Utah   2 46102   
Vermont  710232112335  
Virginia213510211216016311752105261017
Washington  4362529344165  
West Virginia   54249612  
Wisconsin  18185447124   
Wyoming   1 6474   
Yukon Territory    11