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Species Latrodectus variolus - Northern 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 Northern Black Widow

Hover over black occurrence boxes to see number of images submitted. Log in to make states, months and boxes clickable.
JanFebMarAprMayJunJulAugSepOctNovDec
Alabama       1 1  
Arkansas   231      
Connecticut   22       
Delaware         2  
Florida    7     1 
Georgia  181231 22  
Illinois     11     
Indiana    56   2  
Kansas     24     
Kentucky    38  53  
Louisiana  5 1       
Maryland  218962813 
Massachusetts1  9  1124  
Michigan   2222221  
Minnesota     21     
Mississippi  6         
Missouri  3 942 611 
New Jersey    371223  
New York        2   
North Carolina   351102    
Ohio       1    
Oklahoma 5 110 21    
Ontario   174242   
Pennsylvania       1    
Rhode Island    11  1   
JanFebMarAprMayJunJulAugSepOctNovDec
South Carolina     43   1 
Tennessee   110251    
Texas   101 11    
Vermont        11  
Virginia  5 11 85 3  
West Virginia        12  
Wisconsin     13 3