Orsonwelles torosus (Simon, 1900:464)
Waimea sheet weaver
Taxonomy & Nomenclature
Synonym/s: Labulla torosa Simon, 1900:464
Hormiga (1994a:11) noted that Labulla torosa and L. graphica probably required a new genus. The species was transferred to the newly erected genus Orsonwelles by (Hormiga, 2002).
Conservation Status
Extinct (Hormiga et al., 2003:71)
Last record: 1890's (probably 1895) (Hormiga, 2002:391)
Failed attampts to find this species have been made by (Hormiga, 2002:391; Hormiga et al., 2003:71).
Distribution
Kauai, Hawaiian Islands, USA
Biology & Ecology
Hypodigm
Only known from an adult female syntype (1 of 3 original specimens) that was later designated a lectotype by (Hormiga, 2002:391). The other two syntypes, an adult male and a juvenile, have been re-identified as belonging to O. malus sp. nov. and sp. indet., respectively (Hormiga, 2002:391).
Media
References
Original scientific description:
Simon, Eugène Louis. (1900). Arachnida. Fauna Hawaiiensis 2: 443-519.
Other references:
Hormiga, Gustavo. (1994a). A revision and cladistic analysis of the spider family Pimoidae (Araneoidea: Araneae). Smithsonian Contributions to Zoology 549: 1-104. https://doi.org/10.5479/si.00810282.549
Hormiga, Gustavo. (1994b). Cladistics and the comparative morphology of linyphiid spiders and their relatives (Araneae, Araneoidea, Linyphiidae). Zoological Journal of the Linnean Society 111(1): 1-71. https://doi.org/10.1111/j.1096-3642.1994.tb01491.x
Hormiga, Gustavo. (2002). Orsonwelles, a new genus of giant linyphiid spiders (Areneae) from the Hawaiian Islands. Invertebrate Systematics 16(3): 369-448.
Hormiga, G., Arnedo, M. and Gillespie, R. G. (2003). Speciation on a conveyor belt: sequential colonization of the Hawaiian Islands by Orsonwelles spiders (Araneae, Linyphiidae). Systematic Biology 52(1): 70-88.
Simon, E. (1904). Arachnida (supplement). Fauna Hawaiiensis 3: 339-344.
https://extinctanimals.proboards.com/thread/15520/orsonwelles-torosus