Trigonidium Rambur, 1838, 2019

Tan, Ming Kai, Baroga-Barbecho, Jessica B. & Yap, Sheryl A., 2019, Taxonomic notes on Trigonidium and related groups with one new species from the Philippines (Orthoptera: Trigonidiidae; Trigonidiinae), Zootaxa 4564 (2), pp. 573-587 : 577

Trigonidium Rambur, 1838 s. str.

Type species: Trigonidium cicindeloides Rambur, 1838

Currently, the subgenus consists of 20 species:

1 T. amarina Otte & Alexander, 1983 from Australia

2 T. australiana (Chopard, 1925) from Australia

3 T. brevipenne Saussure, 1899 from Madagascar (images available on OSF)

4 T. bundilla Otte & Alexander, 1983 from Australia

5 T. canara Otte & Alexander, 1983 from Australia

6 T. canberrae Otte & Alexander, 1983 from Australia

7 T. cicindeloides Rambur, 1838 from Old World (images available on OSF)

8 T. erythrocephalum (Walker, 1869) from South Africa (images available on OSF)

9 T. goobita Otte & Alexander, 1983 from Australia

10 T. guineense (Saussure, 1878) from Western Africa

11 T. humbertianum (Saussure, 1878) from Sri Lanka

12 T. infuscata (Chopard, 1925) from Australia

13 T. inopinum Otte & Cowper, 2007 from Fiji Islands

14 T. killawarra Otte & Alexander, 1983 from Australia

15 T. lalwinya Otte & Alexander, 1983 from Australia

16 T. meekappa Otte & Alexander, 1983 from Australia

17 T. nigritum (Saussure, 1899) from Madagascar (images available on OSF) (might not belong to Trigonidium ?)

18 T. novarae (Saussure, 1878) from Java (tegminal dorsal field occupied by about 8 longitudinal veins elevated, making field seem “coarsely streaked”; and wings surpassing tegmen suggest that this species may belong to Rhicnogryllus . Male genitalia and type specimens need to be examined to confirm this.)

19 T. parinervis (Chopard, 1925) from Australia

20 T. rubellonigrum Gorochov, 1987 from Vietnam (only females known; cannot confirm whether species belong to Trigonidium or Metioche without males [ Gorochov, 1987])