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Family Elmidae - Riffle Beetles


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 Riffle Beetles

Hover over black occurrence boxes to see number of images submitted. Log in to make states, months and boxes clickable.
JanFebMarAprMayJunJulAugSepOctNovDec
Alabama     214    
Arizona     3 3    
Arkansas     148    
British Columbia6    22 1   
California   1 942610   
Colorado  42        
Florida 1  1 2     
Georgia        1   
Idaho       4    
Illinois      11122   
Indiana  2   1131   
Iowa     196    
Kansas     112  1 
Kentucky     1      
Louisiana      11    
Maine    2  3    
Manitoba       1    
Maryland     515324  
Massachusetts 2  3545331   
Minnesota        1   
Mississippi     4      
Missouri     4 1    
Montana          1 
Nevada    3    4  
New Brunswick       2    
JanFebMarAprMayJunJulAugSepOctNovDec
New Hampshire    111344   
New Jersey     646    
New Mexico      5     
New York     11721   
North Carolina   5 14     
North Dakota     51     
Nova Scotia       1    
Ohio      2     
Oklahoma       1    
Ontario1  1 1321   
Oregon     2482 2  
Pennsylvania     1222    
Quebec      281   
South Carolina       2    
Tennessee      441   
Texas   41315731242 
Vermont            
Virginia     81313    
Washington     63023   
West Virginia     21 2   
Wisconsin   10 3561