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Picture ID 189012

Picture of unidentified spider

Comments & ID Thoughts

My guess is black widow

  • Submitted by: 
  • Submitted: Sep 16, 2023
  • Photographed: Sep 15, 2023
  • Spider: Unidentified
  • Location: Arvada, Colorado, United States
  • Spotted Indoors: Other
  • Found in web?: Yes
  • Attributes:
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This is Laterodectus genus. A widow spider. Might be a male.


Generally with males, they are a lighter color and varied light and dark legs.
Not engraved in stone, and this could be a female. Usually their abdomens are larger and globular. Could have recently laid eggs though.
Western black widow in any event.
Species Latrodectus hesperus – Western Black Widow – BugGuide.Net


Females rarely stray out of their web unless driven out. Their hide where eggs are hidden will be near by. I watched my resident black widow grow from young juvenile. I caught a male and put him in her web to observe. (fascinating) When it was obvious, she mated and gravid, I put her in captivity so I could remove any sacs. 2 nice large ones. Him meets her: Widow him and her | Boy meets girl Just put a male in her we… | Flickr Gravid and he takes up residence in her web: Widow getting fat | female… Read more »