Trigonopterus sepuluh 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 : 71-72

Taxon classification Animalia Coleoptera Curculionidae

77. Trigonopterus sepuluh Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 77a). Length 2.53 mm. Color black; antennae and tarsi ferruginous. Body in dorsal aspect subovate, with weak constriction between pronotum and elytron; in profile dorsally convex. Rostrum with median and pair of indistinct submedian ridges; intervening furrows containing row of coarse punctures, with rows of erect scales; epistome with subangulate ridge bearing five denticles. Head with front margin of eye bordered by distinct furrow. Pronotum with disk densely punctate with small punctures; interspaces subglabrous; each puncture containing small re cumbent seta. Elytra with striae marked by small punctures; intervals flat, weakly microreticulate, with small interspersed punctures, especially on sutural interval; elytral apex subtruncate, in apical aspect ventral outline weakly bisinuate. Metafemur subapically with stridulatory patch. Dorsal edge of tibiae with subbasal angulation, dentate in pro- and mesotibia. Abdominal ventrites 1-2 subglabrous, with few long erect narrow scales, laterally with swollen rim; abdominal ventrite 2 in profile projecting dentiform; abdominal ventrite 5 flat, basally with indistinct transverse costa, with sparse coarse punctures and suberect scales. Penis (Fig. 77b) with sides of body subparallel; apex rounded, with sparse setae; transfer apparatus small, complex, wider than long; apodemes 1.9 × as long as body; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.16-2.55 mm. Female body between humeri slightly more slender. Female rostrum dorsally subglabrous, coarsely punctate, interspaces microreticulate; epistome simple.

Material examined.

Holotype (MZB): ARC2538 (EMBL # LM655875), W-Kalimantan Prov., Bengkayan, Suka-Bangun, Mt. Bawang, sample 5, N00°54.103', E109°22.515', 652 m, 11-XII-2011 (MZB). Paratypes (MZB, SMNK, ZSM): 8 exx, ARC2539 (EMBL # LM655876), ARC2540 (EMBL # LM655877), ARC2541 (EMBL # LM655878), same data as holotype.

Distribution.

W-Kalimantan Prov. (Mt. Bawang). Elevation: 652 m.

Etymology.

This epithet is based on the Indonesian word for “ten” and is treated as a noun in apposition.

Notes.

Trigonopterus sepuluh Riedel, sp. n. was coded as " Trigonopterus sp. 365" by Tänzler et al. (2014).