Trigonopterus roensis Riedel

Riedel, Alexander, Taenzler, Rene, Balke, Michael, Rahmadi, Cahyo & Suhardjono, Yayuk R., 2014, Ninety-eight new species of Trigonopterus weevils from Sundaland and the Lesser Sunda Islands, ZooKeys 467, pp. 1-162 : 61-62

Taxon classification Animalia Coleoptera Curculionidae

66. Trigonopterus roensis Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 66a). Length 1.75 mm. Color of antennae and tarsi ferruginous, remainder black. Body in dorsal aspect with marked constriction between pronotum and elytron; with distinct constriction in profile. Rostrum with median ridge and pair of submedian ridges, intervening furrows with sparse rows of setae; epistome with transverse, subangulate ridge. Pronotum with subapical constriction; disk coarsely punctate-rugose, sparsely setose; in basal half with pair of sublateral, kidney-shaped impressions; with median ridge. Elytra with striae deeply impressed, each with row of short, suberect setae; intervals costate-carinate, subglabrous; apex subtruncate, weakly rounded. Femora each with small tooth; profemur relatively long. Metafemur subapically with stridulatory patch. Abdominal ventrite 5 flat, coarsely punctate. Penis (Fig. 66b) with sides of body subparallel, in apical third converging; apex subangulate, medially with sparse setae; transfer apparatus flagelliform, relatively thick, 2.6 × as long as body; apodemes 2.5 × as long as body. Intraspecific variation. Length 1.71-1.86 mm. Coloration dark as in holotype, or largely deep ferruginous. Female rostrum dorsally subglabrous, sparsely punctate, with dorsolateral pair of furrows.

Material examined.

Holotype (MZB): ARC2219 (EMBL # LM655675), East Nusa Tenggara Prov., Flores, Labuhan Bajo, Roe, sample 1, S08°36.540', E120°01.871', 955 m, 13-III-2011. Paratypes (MZB, SMNK): Flores: 1 ex, ARC2218 (EMBL # LM655674), same data as holotype; 2 exx, ARC2227 (EMBL # LM655683), ARC2228 (EMBL # LM655684), Labuhan Bajo, Roe, sample 5, S08°35.395', E120°00.383', 790 m, 13-III-2011; 2 exx, ARC2245 (EMBL # LM655700), ARC2246 (EMBL # LM655701), Labuhan Bajo, Tebedo, lowland forest, sample 1, S08°29.848', E119°59.633', 525 m, 14-III-2011.

Distribution.

East Nusa Tenggara Prov., Flores (Labuhan Bajo). Elevation: 525-955 m.

Etymology.

This epithet is based on the type locality.

Notes.

Trigonopterus roensis Riedel, sp. n. was coded as " Trigonopterus sp. 353" by Tänzler et al. (2014).