Trigonidium (cricket) explained

Trigonidium^[1] is a large genus of sword-tail crickets, typical of the tribe Trigonidiini. Records of occurrence are from Europe, Africa, tropical Asia, Australia and the Pacific islands;^[2] many species endemic to Pacific islands including Hawaii have now been placed in the genus Nudilla.

Subgenera and species

The Orthoptera Species File^[2] currently lists five subgenera:

BalamaraAuth: Otte & Alexander, 1983 - Australia

• Trigonidium albovittatum (Chopard, 1951)
• Trigonidium gidya (Otte & Alexander, 1983)
• Trigonidium marroo (Otte & Alexander, 1983)

ParametiocheAuth: Otte & Alexander, 1983 - Australia

• Trigonidium rectinerve (Chopard, 1951)

Paratrigonidium

Auth: Brunner von Wattenwyl, 1893 - mostly tropical Asia

• Trigonidium castaneum (Brunner von Wattenwyl, 1893)
• Trigonidium chichila (Ingrisch, 2001)
• Trigonidium chloropodum (He, 2017)
• Trigonidium chopardianum (Ebner, 1943)
• Trigonidium coloratum (Caudell, 1927)
• Trigonidium darevskii Gorochov, 1987
• Trigonidium fasciatum (Brunner von Wattenwyl, 1893)
• Trigonidium javanicum (Caudell, 1927)
• Trigonidium majusculum (Karny, 1915)
• Trigonidium nitidum (Brunner von Wattenwyl, 1893)
• Trigonidium striatum (Shiraki, 1911)
• Trigonidium topali Gorochov, 1987
• Trigonidium transversum (Shiraki, 1930)
• Trigonidium unifasciatum (Chopard, 1928)
• Trigonidium venustulum (Saussure, 1878)

Trigonidium

Auth: Rambur, 1838 - Europe, Africa, Asia, Australia, Pacific islands

• Trigonidium ahiu Otte, 1994
• Trigonidium amarina Otte & Alexander, 1983
• Trigonidium australianum (Chopard, 1925)
• Trigonidium brevipenne Saussure, 1899
• Trigonidium bundilla Otte & Alexander, 1983
• Trigonidium canara Otte & Alexander, 1983
• Trigonidium canberrae Otte & Alexander, 1983
• Trigonidium cicindeloides Rambur, 1838 - type species
• Trigonidium erythrocephalum (Walker, 1869)
• Trigonidium goobita Otte & Alexander, 1983
• Trigonidium guineense (Saussure, 1878)
• Trigonidium humbertianum (Saussure, 1878)
• Trigonidium infuscatum (Chopard, 1925)
• Trigonidium inopinum Otte & Cowper, 2007
• Trigonidium japonicum Ichikawa, 2001
• Trigonidium killawarra Otte & Alexander, 1983
• Trigonidium lalwinya Otte & Alexander, 1983
• Trigonidium meekappa Otte & Alexander, 1983
• Trigonidium nigripes Yuan, Ma & Gu, 2022
• Trigonidium nigritum (Saussure, 1899)
• Trigonidium novarae (Saussure, 1878)
• Trigonidium parinerve (Chopard, 1925)
• Trigonidium rubellonigrum Gorochov, 1987
• Trigonidium rubrumoculum He & Ma, 2022
• Trigonidium solis Tan, Baroga-Barbecho & Yap, 2019

Trigonidomorpha

Auth: Chopard, 1925 - Africa, India, Australia

• Trigonidium ammonga (Otte & Alexander, 1983)
• Trigonidium basilewskyi (Chopard, 1955)
• Trigonidium fuscifrons (Chopard, 1936)
• Trigonidium kundui (Bhowmik, 1971)
• Trigonidium lineatifrons (Chopard, 1935)
• Trigonidium obscuripennis (Chopard, 1957)
• Trigonidium pallidipennis (Chopard, 1962)
• Trigonidium pallipes (Chopard, 1938)
• Trigonidium pubescens (Chopard, 1954)
• Trigonidium sjostedti (Chopard, 1925) [Or as ''Trigonidomorpha sjostedti'' <small>Chopard, 1925</small>]
• Trigonidium vittatum (Chopard, 1954) => [Or as ''Trigonidomorpha vittata'' <small>Chopard, 1954</small>]

Notes and References

1. Rambur (1838) Faune entomologique de l'Andalousie 2: 39.
2. http://orthoptera.speciesfile.org/Common/basic/Taxa.aspx?TaxonNameID=1127270 Orthoptera Species File: Trigonidium (Version 5.0/5.0; retrieved 22 August 2020)