Steatoda grossa
(False Black Widow)

Picture ID 56879

Submitted by:
ohspider
Submitted: Apr 13, 2019
Photographed: Apr 13, 2019
Spider: Steatoda grossa (False Black Widow)
Sex:
Male,
Maturity:
Adult
Location: Santee , California, United States
Spotted Indoors: Other
Found in web?: No
Attributes: Dorsal

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Trahearne

April 14, 2019 1:35 am

Looks like a male Steatoda spider, most likely s. grossa.

BugmanDan

Reply to Trahearne

April 14, 2019 2:38 am

A few features I see rule out cobweb spider, the tibia and tarsus for one matches the crevice weaver. This is a dark specimen, lighten the image you see the carapace and eyes match Kukulcania.

BugmanDan

April 14, 2019 1:41 am

Hi. this is a male southern house spider, not yet mature. One of the crevice weavers,Kukulcania hibernalis species. They are totally harmless, not known to bite. You live near Sacramento, Bay area, LA, or San Diego, a possible twin species, Kukulcania arizonica(Arizona black hole spider). A 3rd, K utahana, possible, less likely. Your little friend may reach adult by the end of the season, he will look more like this: https://www.flickr.com/photos/32083154@N02/3710691068/in/dateposted/ Sometimes mistaken for recluse and needlessly killed. Females look a lot different and stay in their messy web and rarely seen hiding in their hole or crack. Very unique… Read more »