Bull-headed sac spider (Trachelas pacificus)

Bull-headed sac spider, a reference photo — Photo: Marshal Hedin · CC BY 2.0 (licence)

Trachelas pacificus is a species of true spider in the family Trachelidae. It is found in the United States and Mexico, specifically Arizona, California, Nevada and Baja California. They are commonly found in houses, and adults can be found year-round.

From Wikipedia, under CC BY-SA 4.0.

Is it venomous or poisonous?

We have no record of Bull-headed sac spider being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.

Easily confused with

Trachelas tranquillus
Meriola decepta
Harpactea rubicunda

Classification

Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Order: Araneae
Family: Trachelidae
Genus: Trachelas
Species: Trachelas pacificus

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