Matuanus Gorochov, 1986

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 : 438

Genus Matuanus Gorochov, 1986

Matuanus Gorochov, 1986a: 705 . — Otte et al. 1987: 447. — Desutter-Grandcolas 1997b: 154. — Robillard & Desutter-Grandcolas 2008: 276 (key to species, p. 275).

TYPE SPECIES. — Matuanus priapus Saussure, 1878 by original designation.

ILLUSTRATIONS. — Habitus: Fig. 13C, D ; Otte et al. 1987: fig. 51. Male genitalia: Anso et al. 2016a: fig. 18D-F; Robillard & Desutter- Grandcolas 2008: figs 4, 5, 11-16, 20-22.

EMENDED DIAGNOSIS. — See Table 5. Body variably fusiform. Coloration variable, often variegated with distinct pattern. Lateral ocelli larger than median ocellus; distance between lateral ocelli shorter than distance between one lateral ocellus and median ocellus. Pronotum transverse, rounded laterally. TI with a large inner and a smaller outer tympanum; with three apical spurs. FI little widened. TII with four apical spurs (sometimes three). TIII with five pairs of subapical spurs; with three inner and three outer apical spurs; serrulation a little strong, regular. Basitarsomeres III high, often compressed laterally, with one row of dorsal spines. HWs not truncate. Male. FWs without a mirror; file and harp variable; no tegminal gland. Metanotum and tergites not glandular. Subgenital plate long, acute, narrowed at mid length. Male genitalia: symmetrical, without a dorsal cavity; pseudepiphallic sclerite long and narrow, wider anteriorly; pseudepiphallic parameres long and narrow, symmetrical. Female. Subgenital plate large, more or less enveloping; distal margin deeply indented. Female genitalia: copulatory papilla small, dorso-ventrally asymmetrical with a wide ventral sclerotization and a small apical ring.

DISTRIBUTION. — Mainly diversified in New Caledonia, but recorded also in Vanuatu (Santo) and French Polynesia (Tahiti) according to Robillard & Desutter-Grandcolas (2008).

HABITAT. — Forest-dwelling species probably living in the canopy. Specimens (mostly females) are found on understorey plants at night.

Figures

FIG. 13. — New Caledonian Podoscirtinae (Gryllidae). A, Calscirtus amoa Otte, 1987, from Col d’Amieu, adult hiding during the day in a gallery dug in a dead branch (Photo PG); B, Calscirtus sp., juvenile, from Lifou (Loyalty Islands), by night (Photo PG); C, Matuanus caledonicus (Saussure, 1878), male, from Monts Koghi (Photo HJ); D, Matuanus elegans Otte, 1987, female, from Col d’Amieu (Photo PG); E, Adenopterus sp., female (Photo PG); F, Archenopterus bouensis Otte, 1987, male, from Parc Provincial de la Rivière Bleue; G, Pixipterus mou Desutter-Grandcolas, 2016, male, from Mont Mou. Scales bars: 2 mm.