Trigonidiidae (Grylloidea)

Tan, Ming Kai, Baroga-Barbecho, Jessica B. & Yap, Sheryl A., 2019, An account on the Orthoptera from Siargao Island (Southeast Asia: Philippines: Mindanao), Zootaxa 4609 (1), pp. 1-30 : 22

Trigonidiidae (Grylloidea)

( Fig. 19 )

Material examined. Trigonidiinae species 1: 1 male (Siargao18_63), Barangay Esperanza, Del Carmen, N9.87004, E126.0293, 83.1±4.8, 16 October 2018, 1140 hours, on bamboo leaf litter.

Nemobiinae species 1: 1 male (Siargao18_41), Barangay Katipunan, Del Carmen, N9.87599, E126.00964, 24.4± 5.5 m, 14 October 2018, 2056 hours, on ground with coconut leaf.

Trigonidiinae species 2: 1 male and 1 female (Siargao18_26, 27), Mahayahay, Del Carmen, N9.86009, E126.03275, 79.4± 8.6 m, 8 April 2018, 2330 hours.

Trigonidiinae species 3: 1 male (Siargao18_81), Mahayahay, Del Carmen, N9.86338, E126.03391, 64.9± 5.2 m, 17 October 2018, 1057 hours, on foliage of herbaceous plants.

Four species of Trigonidiidae , consisting of three Trigonidiinae and one Nemobiinae , could not be identified to genus level because the genitalia have not been documented. They could represent new species or even genera but a revision of the family is still needed.

Figures

FIGURE 19. Trigonidiidae: Trigonidiinae species 1 male habitus in lateral view (A) and genitalia (B); Nemobiinae male living habitus (C) and genitalia (D); Trigonidiinae species 2 female habitus (E) and male genitalia (F); Trigonidiinae species 3 habitus in dorsal view (G) and genitalia (H). Scale bars: 2 mm (A, G); 0.1 mm (B, D, F, H).