Trigonopterus rutengensis 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 : 64-65

Taxon classification Animalia Coleoptera Curculionidae

69. Trigonopterus rutengensis Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 69a). Length 1.78 mm. Color of antennae and tarsi ferruginous; remainder dark ferruginous to black, with slight bronze lustre. Body subovate, in dorsal aspect and in profile with weak constriction between pronotum and elytron. Rostrum with median ridge and pair of submedian ridges, intervening furrows each with sparse row of mesad directed scales; epistome simple. Pronotum coarsely punctate, interspaces longitudinally rugose; with median costa; with sparse, subrecumbent scales. Elytra with striae deeply impressed, each with row of slender suberect scales; intervals costate, subglabrous; incised suture bordered by row of squamiferous punctures, partly overgrown by costate sutural interval. Femora with simple, crenate anteroventral ridge. Metafemur subapically with stridulatory patch. Metatibia apically with uncus and small premucro. Abdominal ventrite 5 coarsely punctate, except apical third subglabrous. Penis (Fig. 69b) with sides of body subpar allel; apex broadly angulate, medially rounded and sparsely setose; transfer apparatus compact, symmetrical, supported by large crescent-shaped sclerite; apodemes 2.0 × as long as body; ductus ejaculatorius without bulbus. Intraspecific variation. Length 1.78-2.02 mm. Color of elytra ferruginous to black, greenish-bronze lustre more or less distinct. Female rostrum in apical half dorsally subglabrous, longitudinally rugose-punctate; epistome simple.

Material examined.

Holotype (MZB): ARC2193 (EMBL # LM655649), East Nusa Tenggara Prov., Flores Isl., Danau Ranamese, sample 2, S08°37.235', E120°33.554', 1295 m, 08-III-2011. Paratypes (MZB, SMNK, ZSM): Flores Isl., Ruteng: 1 ex, ARC2207 (EMBL # LM655663), Mt. Ranaka, sample 2, S08°37.164', E120°31.106', 1450 m, 08-III-2011; 1 ex, ARC3627 (EMBL # LM656057), Mt. Ranaka, sample 11, S08°37.386', E120°31.156', 1575 m, 08-III-2011; 4 exx, ARC2584 (EMBL # LM655893), ARC2585 (EMBL # LM655894), Mt. Ranaka, sample 10, S08°37.481', E120°31.410', 1610 m, 10-III-2011; 3 exx, ARC2208 (EMBL # LM655664), ARC2577 (EMBL # LM655886), ARC2578 (EMBL # LM655887), Danau Ranamese, sample 4, S08°38.385', E120°33.568', 1215 m, 08-III-2011; 2 exx, ARC2586 (EMBL # LM655895), Danau Ranamese, sample 6, S08°38.370', E120°33.798', 1215 m, 11-III-2011.

Distribution.

East Nusa Tenggara Prov., Flores (Ruteng). Elevation: 1215-1610 m.

Etymology.

This epithet is based on the type locality.

Notes.

Trigonopterus rutengensis Riedel, sp. n. was coded as " Trigonopterus sp. 306".