Picture ID 158204

Picture of unidentified spider

Comments & ID Thoughts

Reverse google search pulls up Black Widow, however it doesn’t have that hourglass shape and looks to be a brown stripe not red. Found at a camp ground outside.

  • Submitted by: 
  • Submitted: Jun 17, 2022
  • Photographed: Jun 17, 2022
  • Spider: Unidentified
  • Location: Polk City, Iowa, United States
  • Spotted Outdoors: Man-made structure (building wall, fences, etc.)
  • Found in web?: No
  • Attributes:
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Looks most like a Redback Spider.


Maybe Castianeira crocata https://bugguide.net/node/view/560407 It looks right, but BugGuide hasn’t had any Iowa sightings of the species yet. Redbacks look similar, but they’re in Australia.. @Eagle515 Welcome! By reverse google, do you mean using Google Lens “computer vision?” It works well but it can focus too much on colors over shape as identifying factors, like humans. This spider is more angular and thick than a Widow or Redback in genus Latrodectus. The hourglass would be on the underside. The stripe is definitely brown on this spider. I think it may be C. crocata out of it’s most common range. It… Read more »


My initial guess was the Castianeira descripta (red spotted ant mimic spider) but they look so similar some times.