Trilasma

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Trilasma
Scientific classification OOjs UI icon edit-ltr.svg
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:

Etymology

The genus is neuter.

Related Research Articles

<span class="mw-page-title-main">Dyspnoi</span> Suborder of harvestmen/daddy longlegs

Dyspnoi is a suborder of harvestmen, currently comprising 43 extant genera and 356 extant species, although more species are expected to be described in the future. The eight families are currently grouped into three superfamilies: the Acropsopilionoidea, Ischyropsalidioidea, and Troguloidea.

<span class="mw-page-title-main">Nemastomatidae</span> Family of harvestmen/daddy longlegs

The Nemastomatidae are a family of harvestmen with about 170 described species in 16 recent genera. Several fossil species and genera are known.

<i>Dicranolasma</i> Family of harvestmen/daddy longlegs

The Dicranolasmatidae are a monotypic family of harvestmen with 16 described species in a single genus, Dicranolasma.

Crosbycus is a potentially monotypic genus of harvestmen in the family Taracidae, with one species found in North America as of 2023, per the World Catalog of Opiliones.

<span class="mw-page-title-main">Taracidae</span> Family of harvestmen/daddy longlegs

Taracidae is a family of harvestmen in the order Opiliones. There are 4 genera and 23 described species in Taracidae.

Cladolasma, is a genus of harvestmen belonging to the family Nemastomatidae. The genus is monotypic containing a single species Cladolasma parvulum. They are endemic to Japan, with records in Ehime and Tokushima Prefectures. The genus was described by Seisho Suzuki, with the type species Cladolasma parvulum Suzuki, 1963, subsequently revised to Dendrolasma parvulum in Suzuki (1974), but later restored as a valid genus.

Asiolasma angka, is a species of harvestmen belonging to the family Nemastomatidae. It is found in Chiang Mai, Thailand. It was initially described in the genus Dendrolasma before being transferred in genus Cladolasma, then later redefined within Asiolasma when that genus was newly described.

<i>Ortholasma</i> Genus of harvestmen/daddy longlegs

Ortholasma is a genus of harvestmen in the family Nemastomatidae with 5 described species. The genus has been revised by Shear (2010).

<i>Ortholasma colossus</i> Species of harvestman/daddy longlegs

Ortholasma colossus is a species of harvestman in the family Nemastomatidae. It is found in North America.

<i>Ortholasma rugosum</i> Species of harvestman/daddy longlegs

Ortholasma rugosum is a species of harvestman in the family Nemastomatidae. It is found in North America.

<i>Hesperonemastoma</i> Genus of harvestmen/daddy longlegs

Hesperonemastoma is a genus of harvestmen in the family Taracidae. There are about five described species in Hesperonemastoma.

Ceratolasma is a genus of harvestmen in the family Ischyropsalididae, found in the Pacific Northwest. There is one described species in Ceratolasma, C. tricantha.

<i>Dendrolasma mirabile</i> Species of harvestman/daddy longlegs

Dendrolasma mirabile is a species of harvestman in the family Nemastomatidae. It is found in North America, in the Pacific Northwest of the USA and Canada. The species was described by Nathan Banks, who reported the original specimen from USA, "Washington State", consistent with later records over a wider geographic range.

<i>Dendrolasma</i> Genus of harvestmen/daddy longlegs

Dendrolasma is a genus of harvestmen in the family Nemastomatidae with two described species. Both species are found in the western coast of North America. An overview of their taxonomy was provided by Schönhofer (2013).

<span class="mw-page-title-main">Ortholasmatinae</span> Subfamily of harvestmen/daddy longlegs

Ortholasmatinae is a subfamily of harvestmen in the family Nemastomatidae with 27 described species in 7 genera. They are found in temperate and often mountainous regions of the Northern Hemisphere.

<span class="mw-page-title-main">Nemastomatinae</span> Subfamily of harvestmen/daddy longlegs

Nemastomatinae is a subfamily of harvestmen with over 125 described species in 19 (extant) genera. They are usually found in temperate regions.

Asiolasma is a genus of harvestmen in the family Nemastomatidae with six described species . The species are found in Southeast Asia, namely China, Vietnam and Thailand. Some species are treated under other genera in Schönhofer (2013).

Dendrolasma dentipalpe is a species of harvestman in the family Nemastomatidae. It is found in North America, in USA California. The species was described by Shear & Gruber, 1983, who reported the holotype from the US in "Carlotta, Humboldt County", alongside other Californian specimens.

Martensolasma is a genus of harvestmen in the family Nemastomatidae with two described species . Both species are found in Mexico. The type species was include in catalog by Schönhofer (2013). The genus Martensolasma was described by William Shear, with the type species Martensolasma jocheni Shear, 2006. A second species was later added to the genus by Cruz-López, 2017.

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. Bibcode:2010ZooK...52....9S. doi: 10.3897/zookeys.52.471 . ISSN   1313-2989. PMC   3088029 . PMID   21594124.
  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.