Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
 

Register · Log In
HomeGuideID RequestRecentFrassForumsDonateHelp
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

Photos of insects and people from the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2024

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

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

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

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


Previous events
TaxonomyBrowseInfoImagesLinksBooks
Data
Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded Mayflies (Heptageniidae) » Maccaffertium

Genus Maccaffertium


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 Maccaffertium
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  36     1  
Alberta     1 1    
Arkansas  2     3   
California  1     2   
Connecticut   1 2111   
Delaware   2        
Florida  1      3 1
Georgia 138    21  
Idaho        2   
Illinois     4 41   
Indiana    221     
Iowa    13205     
Kansas    152     
Kentucky   3111     
Louisiana   3  2     
Maine 2  24 21   
Maryland   24333018917  
Massachusetts 3 2915109    
Michigan    3 21    
Minnesota      21    
Missouri  1 41      
Montana   1   1    
Nebraska     161 1  
Nevada    1       
New Hampshire   763  3   
JanFebMarAprMayJunJulAugSepOctNovDec
New Jersey   13415    
New York    220552   
North Carolina  6166612113 
North Dakota     2      
Nova Scotia     1      
Ohio    3 3     
Oklahoma   11       
Ontario1  14783 3  
Pennsylvania   841182692   
Quebec    539212031  
Rhode Island       10    
South Carolina 1 5 5 8    
Tennessee  62119825  5 
Texas    1       
Vermont  33241     
Virginia5 1212141313 18 12
Washington   3 111    
West Virginia    2  1    
Wisconsin    11251    

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.
Everything else copyright © 2003-2025 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Plant Pathology, Entomology and Microbiology at Iowa State University logo

Printer Friendly Version 		Terms of Use
Privacy Statement
Site Map
Contact