Picture ID 164573

Picture of unidentified spider

Comments & ID Thoughts

I’m not sure, possibly an Arizona brown spider? This is a picture of it’s belly, the marking has me puzzled. It seemed a little large for an AZ brown spider. About the size of a quarter. Very black in color, but not shiny like the black widow. Found in corner of bathroom. No markings on back after I killed it!!

  • Submitted by: 
  • Submitted: Sep 21, 2022
  • Photographed: Sep 21, 2022
  • Spider: Unidentified
  • Location: Mesa (Phoenix), Arizona, United States
  • Spotted Indoors: Sink or bathtub
  • Found in web?: Yes
  • Attributes:
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Hi. This is certainly a cobweb spider. If not western black widow, then likely triangulate cobweb spider.or Asagena medialis (no common name)
Species Asagena medialis – BugGuide.Net
Species Steatoda triangulosa – BugGuide.Net