Trilasma
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Opiliones
Family: Nemastomatidae
Subfamily: Ortholasmatinae
Genus: Trilasma
Goodnight & Goodnight, 1942
Type species
Trilasma bolivari
Goodnight & Goodnight, 1942
Diversity
9 species
Synonyms
List
  • Ruaxphilos Goodnight & Goodnight 1945

Trilasma is a genus of harvestmen in the family Nemastomatidae with nine described species (as of 2023).[1][2][3] The species are mainly found in Mexico.[1][4][5]

The genus Trilasma was described by Goodnight & Goodnight, 1942, with the type species Trilasma bolivari Goodnight & Goodnight, 1942. Shear and Gruber, 1983[6] considered Trilasma as a subgenus of Ortholasma. They revised numerous samples of most species of several Ortholasmatinae in a broad revision, except the troglobiont Ortholasma sbordonii Šilhavý, 1974 which was redescribed from just the original type material. However, this and several other species were later transferred to Trilasma by William Shear.[7] The same revised list of species were include in catalog by Schönhofer (2013).[8]

Description

The genus Trilasma was revised as a subgenus of Ortholasma by Shear and Gruber, 1983.[6] However, it was then again diagnosed as distinct from Ortholasma by several aspects, such as the median hood arising dorsally with an anterior projection in a shallow curve. The hood is also parallel-sided or nearly so, with a dorsal tubercles in a row or rows (See Shear, 2010).[7]

Species

These nine species belong to the genus Trilasma:

  • Trilasma bolivari Goodnight & Goodnight, 1942 – Mexico (Puebla)
  • Trilasma chipinquense Shear, 2010 – Mexico (Nuevo León)
  • Trilasma hidalgo Shear, 2010 – Mexico (Hidalgo)
  • Trilasma petersprousei Shear, 2010 – Mexico (San Luis Potosí)
  • Trilasma ranchonuevo Shear, 2010 – Mexico (Tamaulipas)
  • Trilasma sbordonii (Šilhavý, 1973) – Mexico (Tamaulipas)
  • Trilasma tempestado Shear, 2010 – Mexico (Nuevo León)
  • Trilasma trispinosum Shear, 2010 – Mexico (Veracruz)
  • Trilasma tropicum Shear, 2010 – Honduras [Unsure locality]

Etymology

The genus is neuter.

References

  1. 1 2 "Trilasma". Kury, A. et al. (2023). WCO-Lite: World Catalogue of Opiliones. Retrieved 2024-01-07.
  2. ↑ "Trilasma". Catalogue of Life. Retrieved 2024-01-07.
  3. ↑ ITIS [None Found, Jan 2024]
  4. ↑ "Trilasma". iNaturalist. Retrieved 2024-01-07.
  5. ↑ "Trilasma". GBIF. Retrieved 2024-01-07.
  6. 1 2 Shear, W.A.; Gruber, J. (1983). "The opilionid subfamily Ortholasmatinae (Opiliones, Troguloidea, Nemastomatidae)". American Museum Novitates. 2757: 1–65. ISSN 0003-0082.
  7. 1 2 Shear, W.A. (2010). "New species and records of ortholasmatine harvestmen from México, Honduras, and the western United States (Opiliones, Nemastomatidae, Ortholasmatinae)". ZooKeys. 52: 9–45. doi:10.3897/zookeys.52.471. ISSN 1313-2989. PMC 3088029.
  8. ↑ Schönhofer, A.L. (2013). "A taxonomic catalogue of the Dyspnoi Hansen and Sørensen, 1904 (Arachnida: Opiliones)". Zootaxa. 3679 (1): 1–68. doi:10.11646/zootaxa.3679.1.1. PMID 26146693.
  • Media related to Trilasma at Wikimedia Commons
  • Data related to Trilasma at Wikispecies
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