| Usofila | |
|---|---|
| |
| female U. flava | |
| |
| U. pacifica | |
Scientific classification 
| |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Telemidae |
| Genus: | Usofila Keyserling, 18911 |
| Type species | |
| U. gracilis Keyserling, 1891
| |
| Species | |
|
4, see text | |
Usofila is a genus of American long-legged cave spiders that was first described by Eugen von Keyserling in 1891.2 Originally placed with the Ochyroceratidae, it was transferred to the Telemidae in 1973.3
All species are found in the United States, with U. pacifica extending to Canada and Alaska.1
Species
As of October 2025, this genus includes four species:1
- Usofila flava Chamberlin & Ivie, 1942 – United States
- Usofila gracilis Keyserling, 1891 – United States (type species)
- Usofila oregona Chamberlin & Ivie, 1942 – United States
- Usofila pacifica (Banks, 1894) – Alaska, Canada, United States
- Formerly included
- Usofila pecki Brignoli, 1980 = Telemofila pecki
References
References
- "Gen. Usofila Keyserling, 1891". World Spider Catalog. doi:10.24436/2. Retrieved 2025-10-09.
- Keyserling, E. (1891). Die Spinnen Amerikas. Brasilianische Spinnen. Nürnberg 3. pp. 1–278.
- Brignoli, P. M. (1973). "I Telemidae, una famiglia di ragni nuova per il continente americano (Araneae)". Fragmenta Entomologica. 8: 248.