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

Clickable Guide

Interactive image map to choose major taxa 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

National Moth Week was July 19-27, and the Summer 2025 gathering in Louisiana, July 19-27

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

Superfamily Astacoidea - Crayfish


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 Crayfish
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  2    23123 
Alberta   2        
Arizona  1 251     
Arkansas    1    5  
British Columbia    1 5     
California    112434  
Colorado     3 3    
Florida 625 126  12
Georgia1 11 5   3  
Illinois  317773731 
Indiana   31       
Iowa       12   
Kansas     2111   
Kentucky       5    
Louisiana    1       
Maine      1     
Maryland  43 4921   
Massachusetts  2151614   
Michigan3 13266  1  
Minnesota      1 7   
Mississippi  1         
Missouri  3     2   
Montana       1    
Nebraska     1      
Nevada        2   
JanFebMarAprMayJunJulAugSepOctNovDec
New Hampshire  1  8  1   
New Jersey      1 3   
New Mexico     315 3   
New York   31  1 2  
North Carolina  2626      
Ohio   3    31  
Oklahoma          1 
Ontario    5 253   
Oregon      112    
Pennsylvania   11251    
Quebec      2     
Rhode Island     3      
South Dakota        1   
Tennessee 1  5133    
Texas2    11 7 1 
Vermont      2 11  
Virginia  5 1      1
Washington    1       
West Virginia3  7   23   
Wisconsin   21  1  2 

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.

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