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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     112    
Arizona            
Arkansas      2     
British Columbia6    22 1   
California   1 4 132   
Colorado  42        
Florida 1    2     
Georgia        1   
Idaho       4    
Illinois      8 1   
Indiana  2   931   
Iowa      83    
Kansas     111  1 
Kentucky     1      
Louisiana            
Maine    2  3    
Maryland     341    
Massachusetts 2  34204    
Minnesota        1   
Mississippi     4      
Missouri     3      
Nevada    3    4  
New Hampshire    111344   
New Jersey     626    
New York      1621   
JanFebMarAprMayJunJulAugSepOctNovDec
North Carolina   5  4     
North Dakota     51     
Nova Scotia       1    
Oklahoma       1    
Ontario1  1 13 1   
Oregon     11   2  
Pennsylvania     1171    
Quebec       21   
South Carolina       2    
Tennessee      221   
Texas    117434 2 
Vermont            
Virginia     426    
Washington     626     
West Virginia        1   
Wisconsin   8  33