Trigonopterus batukarensis 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 : 15-16

Taxon classification Animalia Coleoptera Curculionidae

13. Trigonopterus batukarensis Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 13a). Length 2.78 mm. Color of antennae and legs ferruginous; remainder black. Body subovate, in dorsal aspect with weak constriction between pronotum and elytron; in profile dorsally convex. Rostrum with median ridge and pair of submedian ridges, intervening furrows each with sparse row of mesad directed scales; epistome with transverse ridge. Pronotum coarsely punctate, reticulate, with indistinct median costa; with sparse, recumbent scales. Elytra with striae dorsally deeply incised, laterally marked by rows of coarse punctures; intervals markedly costate, dorsally flattened, with rows of punctures; sutural interval basally hardly widened; each puncture containing small recumbent scale; elytral apex subtruncate. Femora with simple anteroventral ridge. Metafemur subapically with stridulatory patch. Abdominal ventrite 5 coarsely punctate, with sparse suberect scales. Penis (Fig. 13b) with sides of body subparallel; apex with median angulate extension; transfer apparatus with thin median rod 1.4 × as long as body; median rod projecting basad; apodemes 2.6 × as long as body; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.48-2.78 mm. Color of elytra dark ferruginous to black. Female rostrum in apical half slender, dorsally subglabrous, with submedian rows of punctures, laterally punctate-rugose; epistome simple.

Material examined.

Holotype (MZB): ARC2303 (EMBL # LM655757), Bali, Mt. Batukaru, Wangayagede, sample 3, S08°21.431', E115°05.699', 1170 m, 31-III-2011. Paratypes (MZB, SMNK): Bali, Mt. Batukaru, Wangayagede: 3 exx, ARC2304 (EMBL # LM655758), ARC2305 (PCR failed), same data as holotype; 1 ex, ARC2302 (EMBL # LM655756), sample 1, S08°22.295', E115°06.048', 835 m, 31-III-2011; 1 ex, Mt. Batukaru, Wangayagede, sample 4, S08°21.373', E115°05.564', 1310 m, 31-III-2011; 3 exx, ARC2951 (EMBL # LM656004), ARC2952 (EMBL # LM656005), ARC2953 (EMBL # LM656006), sample 4, S08°21.373', E115°05.564', 31-III-2011.

Distribution.

Bali (Mt. Batukaru). Elevation: 835-1310 m.

Etymology.

This epithet is based on the type locality Mt. Batukaru.

Notes.

Trigonopterus batukarensis Riedel, sp. n. was coded as " Trigonopterus sp. 340" by Tänzler et al. (2014).