Trigonidomorpha Chopard, 1925

Desutter-Grandcolas, Laure, Anso, Jérémy & Jourdan, Hervé, 2016, Crickets of New Caledonia (Insecta, Orthoptera, Grylloidea): a key to genera, with diagnoses of extant genera and descriptions of new taxa, Zoosystema 38 (4), pp. 405-452 : 416

Genus Trigonidomorpha Chopard, 1925 n. stat.

Trigonidomorpha Chopard, 1925: 40 .

Trigonidium (Trigonidomorpha) – Otte 1994: 46.

TYPE SPECIES. — Trigonidomorpha sjöstedti Chopard, 1925 by monotypy.

ILLUSTRATIONS. — Habitus: Fig. 3D ; Otte & Alexander 1983: fig. 174. Male genitalia: Otte & Alexander 1983: fig. 176.

DIAGNOSIS. — After Otte & Alexander (1983). Very similar to Metioche , from which it can be separated by the stridulatory device present on male FWs.

DISTRIBUTION. — Australia, India, Sri Lanka, Africa. In New Caledonia, the genus is reported from Sarramea (material in MNHN).

REMARK

After the phylogenetic topology of Chintauan-Marquier et al. (2013, 2016), Trigonidomorpha clearly separates from Trigonidium Rambur, 1839 , which constitutes a robust monophyletic group. It consequently cannot be considered a subgenus of Trigonidium and we restore it as separate genus, even though its status will have to be reconsidered and validated with a complete taxonomic reanalysis of trigonidiine genera.

Figures

FIG. 3. — New Caledonian Trigonidiinae (Trigonidiidae): A, Anaxipha sp., male, from Col d’Amieu; B, Amusurgus sp., from Lifou (Loyalty Islands); C, Metioche sp., from the Seychelles (Photo SH); D, Trigonidomorpha sp. from Mauritius (Photo SH). Scale bars: 1 mm.