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Home » Guide » Arthropods (Arthropoda) » Crustaceans (Crustacea) » Malacostracans (Malacostraca)

Class Malacostraca - Malacostracans


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 Malacostracans
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 657657571661
Alaska 2  6171892   
Alberta2  237 2    
Arizona7431561026 5 4
Arkansas116 111 1731
British Columbia  314159141134134
California4222423948614041253762110
Colorado  1646 7 3  
Connecticut  2117416 14  
Delaware  4107165    
District of Columbia          12
Florida302131333249426712102474
Georgia44336812317  
Idaho    1       
Illinois45282422181151592 
Indiana19458 12 13 
Iowa 2352 122  1
Kansas    341  2  
Kentucky 2132  6  42
Louisiana4 335 7  3  
Maine  10109253027251773
Manitoba      14 1  
Maryland11153522211729913211214
Massachusetts66415627293327291693
Michigan4 2116106 671 
JanFebMarAprMayJunJulAugSepOctNovDec
Minnesota  74237 12   
Mississippi4 22132  16 
Missouri117 221232  
Montana  1 101 1    
Nebraska  3423 5  6 
Nevada325 111 2  2
New Brunswick   23 1  214
New Hampshire 23631510126112 
New Jersey  4171210771014  
New Mexico 1 11415 316 
New York67243121254017181953
Newfoundland/Labrador   14211611 53 5
North Carolina811152411246179432
North Dakota    1       
Northwest Territories    1       
Nova Scotia    1111 1   
Ohio3  123  133  
Oklahoma32532 3 4 42
Ontario 32101517755752
Oregon10571212161966518
Pennsylvania 71661671777315
Prince Edward Island      5     
Quebec 138115355151 
Rhode Island   918636754326 4
Saskatchewan   1 11 2   
South Carolina41 1 11513 112 
JanFebMarAprMayJunJulAugSepOctNovDec
South Dakota      1 1   
Tennessee21741145101 1 
Texas278271616401815123286
Utah 2 451  12  
Vermont 1 2  2 421 
Virginia7111411101025453
Washington310152120121424141022
West Virginia3227   2331 
Wisconsin2 246455 13 
Wyoming   1        
Yukon Territory            

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.

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