Amusurgus Brunner von Wattenwyl, 1893

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 Amusurgus Brunner von Wattenwyl, 1893

Amusurgus Brunner von Wattenwyl, 1893: 212 .

TYPE SPECIES. — Amusurgus fulvus Brunner von Wattenwyl, 1893 by monotypy.

ILLUSTRATIONS. — Habitus: Fig. 3B ; Otte & Alexander 1983: figs 149, 150. Male genitalia: Otte & Alexander 1983: fig. 152.

EMENDED DIAGNOSIS. — After Otte & Alexander (1983) for Australia and material from New Caledonia preserved in MNHN. Head dorsum not flat between eyes. TI with a wide inner tympanum; outer tympanum grooved. FWs hairy; flat in lateral view. HWs well developed but shorter than FWs. TIII with three pairs of long and thin alternate subapical spurs; only five relatively short apical spurs, ventral inner spur lacking.

Male. Dorsal gland on abdomen. No stridulatory device. Subgenital plate large, distal margin bisinuate. Male genitalia: distal pseudepiphallic median lobes well developed and divergent; lateral lobes dejected latero-ventrally, as long or longer than median lobes (see Otte & Alexander 1983: fig. 152); pseudepiphallic parameres small.

Female. FWs developed as in males. Ovipositor: distal margins of dorsal and ventral valves feebly crenulated (see Otte & Alexan- der 1983: fig. 153).

DISTRIBUTION. — Mostly diversified in South East Asia and Oceania (see Eades et al. 2016); reported here for the first time from New Caledonia (Loyalty islands).

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.