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Species Latrodectus hesperus - Western Black Widow


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 Western Black Widow

Hover over black occurrence boxes to see number of images submitted. Log in to make states, months and boxes clickable.
JanFebMarAprMayJunJulAugSepOctNovDec
Alberta     4 1 1  
Arizona1298813111581778
British Columbia   2 2141   2
California10839617294639316 
Colorado    44521361 
Idaho        1   
Kansas  2    2    
Montana         1  
Nebraska     1      
Nevada  3 1228 212  
New Mexico 11111947791 
Oklahoma   11 4 2   
Oregon 122314 66  
South Dakota       2    
Texas3 2 42812953 
Utah   2   6161  
Washington  2    6103  
Wyoming    2