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Genus Hydraena


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 Hydraena

Hover over black occurrence boxes to see number of images submitted. Log in to make states, months and boxes clickable.
JanFebMarAprMayJunJulAugSepOctNovDec
Arizona    1   1   
British Columbia   2   2    
California   3 1      
Illinois      4     
Louisiana    2       
Massachusetts  23        
New Hampshire   3        
Ontario  12        
Quebec   1    1   
Washington     21