Parendacustes Chopard, 1924

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 : 414-415

Genus Parendacustes Chopard, 1924

Parendacustes Chopard, 1924: 190 .

TYPE SPECIES. — Parendacustes cavicola Chopard, 1924 by original monotypy.

ILLUSTRATIONS. — Habitus: Fig. 2B . Male genitalia: Desutter- Grandcolas 2002: figs 16-18.

EMENDED DIAGNOSIS. — After Chopard (1924) and Desutter- Grandcolas (2002). Size medium to large; coloration variegated yellow and brown, legs annulated. Eyes reduced in size and protruding. Fastigium very narrow or as wide as scape; not separated from vertex by a transverse furrow; median ocellus vertical, subapical on fastigium; lateral ocelli close to each other and very small compared to median ocellus. Scapes wide, but longer than wide. Maxillary palpi very thin and elongate; joints 3 and 4 subequal; joint 5 the longest, truncate apically, regularly widened toward apex. Pronotum very transverse (less so in P. lifouensis ); DD with a clear longitudinal median furrow; LL well-developed, anterior angles raised dorsally, posterior angles shorter and truncate. TI with a small inner tympanum, without outer tympanum; two apical spurs, the inner the longest.TII with three apical spurs (only two in P. lifouensis ); ventral inner spur the longest, dorsal outer spur missing. FIII with a thin apical part. TIII only slightly higher than wide; two to four inner and three to four outer subapical spurs; three inner and three outer apical spur, median spur the longest on both sides, median inner spur longer than half basitarsomere III (shorter in P. lifouensis ). TIII serrulated over their whole length with numerous, widely separate, very small spines (except in P. lifouensis ). Basitarsomeres III very long; two rows of few, small dorsal spines (only one in P. lifouensis ). Male. Metanotum, tergites and supra anal plate without glandular areas. Forewings nearly covering whole abdomen ( P. lifouensis apterous); dorsal and lateral fields separated by a high Media vein; median area lateral, MP and CuA thick, CuP short; lateral field narrow, R close to MA or not, thick, with few or numerous oblique veins. Stridulatory apparatus complete and functional: harp crossed by several oblique parallel veins; mirror broadly triangular, crossed by one circular vein often located in mirror distal third. Male subgenital plate low distally. Male genitalia: pseudepiphallic sclerite small, transverse, without separate rami; median and lateral lophi both present, separate the ones from the others and from pseudepiphallic sclerite; lateral lophi more or less hook-like; median lophi plate-like; pseudepiphallic parameres having the shape of a vertical plate below median lophi; ectophallic apodemes short and wide, more or less vertical and cup-shaped distad; arc well-developed and roof-like; ectophallic fold short and truncated; dorsal valves absent; endophallic sclerite narrow and elongate, without a large apodeme. Female. Apterous; ovipositor variable.

DISTRIBUTION. — From Thailand in the North West, to New Caledonia in the South East, with a maximal diversity in Indomalaysia. In New Caledonia, Parendacustes is known by only one species from the Loyalty Islands (Lifou).

HABITAT IN NEW CALEDONIA. — Parendacustes lifouensis has been found exclusively by day in cavities inside uplifted corals along the sea side in Lifou island.

Figures

FIG. 2. — New Caledonian Phalangopsidae Blanchard, 1845: A, Protathra centralis Desutter-Grandcolas, 2014, from Aoupinié, by night (modified from Desutter- Grandcolas et al. 2014); B, Parendacustes lifouensis Desutter-Grandcolas, 1997, male, from Lifou (Loyalty Islands); C, Caltathra amiensis Desutter-Grandcolas, 1997,from Col d’Amieu,by night (Photo PG);D, Pseudotrigonidium noctifolia Desutter-Grandcolas,1997,from Col d’Amieu,by night (Photo PG).Scale bars:5 mm.