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Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12


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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Spiders (Araneae) » True Spiders (Araneomorphae) » Entelegynae » Cobweb Spiders (Theridiidae) » Widow Spiders (Latrodectus) » Western Black Widow (Latrodectus hesperus)

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
Credits: Generated with MapServer. BugGuide integration kindly provided by Mike Boone.

Hover over black occurrence boxes to see number of images submitted. Log in to make states, months and boxes clickable.
JanFebMarAprMayJunJulAugSepOctNovDec
Alberta     4 1 2  
Arizona2313810312426222098
British Columbia  12 2141   2
California109310624374848437 
Colorado    74571581 
Idaho        3   
Kansas  2    2    
Missouri       1    
Montana         1  
Nebraska     1 5 2  
Nevada  3 1228 312 1
New Mexico 111121111810101 
Oklahoma   11 482   
Ontario           1
Oregon 162314 662 
South Dakota       2    
Texas3 2 528139545
Utah   2  27161  
Washington 123  19123  
Wyoming    2       

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

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