The BioFiles - Bill Hubick

False Black Widow (Steatoda grossa)

Genus Steatoda  / Family Theridiidae  / Order Araneae  / Class Arachnida  / Phylum Arthropoda  / Kingdom Animalia

A male False Black Widow in Monterey County, California (7/27/2020).

A False Black Widow in Anne Arundel Co., Maryland (9/16/2012). Introduced from Europe and found near human habitations on both coasts and along the Great Lakes. Note similar shape, complete lack of red markings, and subtle structural details.

A False Black Widow in Anne Arundel Co., Maryland (5/8/2017).


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