| Orsonwelles torosus | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Chelicerata |
| Class: | Arachnida |
| Order: | Araneae |
| Infraorder: | Araneomorphae |
| Family: | Linyphiidae |
| Genus: | Orsonwelles |
| Species: | O. torosus |
| Binomial name | |
| Orsonwelles torosus (Simon, 1900) | |
 | |
| Original range in the Hawaiian Islands | |
| Synonyms | |
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Orsonwelles torosus is a species of linyphiid spider endemic to Kauai in the Hawaiian Islands. It was described in 1900 by the French naturalist Eugène Simon based on a specimen collected in the 1890s, but has not been collected since, and is presumed extinct.