Lebinthus cyclopus, Robillard, Tony, 2010

Robillard, Tony, 2010, New species of the genus Lebinthus (Orthoptera, Grylloidea, Eneopterinae, Lebinthini) from Indonesia and the Solomon Islands, Zootaxa 2386, pp. 25-48 : 32-36

Lebinthus cyclopus n. sp.

( Figs 1 C, 3C, 4C, 5G–I)

Type material. Holotype male: Indonesia: Province Papua: [ Papua Is.], Mt[s] Cyclops, 4000 ft., 12-III-1936 (L.E. Cheesman) (BMNH-B.M.1936-271).

Type locality. Indonesia, Papua Island, Mounts Cyclops.

Etymology. Species named after the type locality.

Distribution. Indonesia, Papua Island.

Diagnosis. Species of small size, very close in shape, FW venation and male genitalia to L. nattawa Robillard, 2009 , from which it differs by colouration and larger size of endophallic sclerite.

Description. Size small. Colouration mostly dark brown. Head dorsum with 6 wide but faint brown longitudinal bands; vertex light brown. Eyes well protruding. Fastigium wider than long, setose, darker than vertex and slightly carenated posteriorly to brown median ocellus; apical and lateral margins yellow. Scapes yellowish brown with light brown patterns; antennae yellowish brown. Cheeks dark brown ( Fig. 3 C). Face wider than high, almost entirely dark brown, with a thin yellow line on epistomal suture; mouthparts dark brown; dorsal part of front head with 2 black spots. Palpi light brown except base and apex, dark brown. Pronotum: Dorsal disk slightly trapezoidal, straight posteriorly; dark brown, lateral margins whitish with dark brown spots. Lateral lobes dark brown with a faint light spot on antero-ventral angle. Legs: Fore and median femora yellowish brown mottled with dark brown; tibiae orange brown. Hind legs homogeneously brown, knees dark brown. Hind tibiae with 3 inner and 5 outer spines above spurs and 2 inner and 5 outer spines between spurs. Tarsomeres III-1 with 3 spines on dorsal outer edges. Abdomen and cerci homogeneously dark brown.

Male: FW not reaching abdomen midlength. FW colouration: Cells and veins homogeneously brown. FW venation ( Fig. 1 C): 1A angle wide (>100°). CuP absent. Harp wide, posterior margin raised, without a distinctive rounded area, with one straight harp vein. CuA faint anteriorly, its distal part curved inwards, around the median fold. Diagonal vein prolonged posteriorly by a strong transverse vein fused to median veins. Longitudinal veins strong at apex, transverse veins faint. Mirror (d1) well differentiated but not rounded. Apical field restricted to one cell in E alignment. Lateral field brown, with 6 strong longitudinal veins including MA, R and 4 more ventral veins; latero-dorsal angle made by MP. Subgenital plate short, not indented ( Fig. 4 C).

Male genitalia ( Fig. 5 G–I): Pseudepiphallic sclerite triangular; anterior apex slightly bisinuate; posterior apex with individualized lophi, rounded and setose; pseudepiphallus convex dorsally. Pseudepiphallic parameres large, trilobate. Ectophallic arc complete and wide, near base of pseudepiphallic parameres, prolonged ventrally by hook-like expansions. Ectophallic fold short and wide, with a W-shaped preapical sclerotization. Endophallic sclerite long, reaching beyond pseudepiphallus anterior margin, with short lateral arms and a short posterior expansion; endophallic apodeme made of a thin median crest.

Female: unknown.

Measurements. see Table 1 .

Habitat and life history traits. unknown.

Behaviour. unknown.

Figures

FIGURE 1. Male FW venation in dorsal view of: A, Lebinthus ambonensis n. sp.; B, Lebinthus buruensis n. sp.; C, Lebinthus cyclopus n. sp.; D, Lebinthus kolombara n. sp.; E, Lebinthus greensladei n. sp.; F, Lebinthus truncatipennis; G, Lebinthus villemantae n. sp. Abbreviations, see Material and methods. Dotted lines correspond to folds; dotted parts correspond to areas of light colouration. Colours: red, harp area; yellow, c 1 cell (s); orange, end of C alignment; green, mirror (d 1 cell (s )), blue, d 2 cell (s); cream, rest of D alignment. Scale bar: 1 mm.

FIGURE 3. Cheek, lateral lobe of pronotum and lateral field of male FW of: A, Lebinthus ambonensis n. sp.; B, Lebinthus buruensis n. sp.; C, Lebinthus cyclopus n. sp.; D, Lebinthus greensladei n. sp.; E, Lebinthus kolombara n. sp.; F, Lebinthus truncatipennis; G, Lebinthus villemantae n. sp. Scale bar: 1 mm.

FIGURE 4. Male subgenital plate of: A, Lebinthus ambonensis n. sp.; B, Lebinthus buruensis n. sp.; C, Lebinthus cyclopus n. sp.; D, Lebinthus greensladei n. sp.; E, Lebinthus kolombara n. sp.; F, Lebinthus truncatipennis; G, Lebinthus villemantae n. sp. Scale bar: 1 mm.

FIGURE 5. Male genitalia of: A – C, Lebinthus ambonensis n. sp.; D – F, Lebinthus buruensis n. sp.; G – I, Lebinthus cyclopus n. sp.; in dorsal (A, D, G), ventral (B, E, H) and lateral (C, F, I) views. Abbreviations, see Material and methods. Scale bars: 1 mm.