Psilochorus hesperus

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Psilochorus hesperus is a spider in the Pholcidae family. It lives in cellars and in small spaces among rock boulders in the Northwestern United States and in British Columbia. Adult males have curved spikes on the front of their jaws.

Classification:
- Kingdom: Animalia
- Phylum: Arthropoda
- Subphylum: Chelicerata
- Class: Arachnida
- Order: Araneae
- Infraorder: Araneomorphae
- Family: Pholcidae
- Genus: Psilochorus
- Species: hesperus
- Binomial name: Psilochorus hesperus (Gertsch & Ivie, 1936)