Trigonopterus pseudosumbawensis 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 : 57

Taxon classification Animalia Coleoptera Curculionidae

61. Trigonopterus pseudosumbawensis Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 61a). Length 1.94 mm. Color of antennae, legs and elytron ferruginous, remainder black. Body in dorsal aspect with marked constriction between pronotum and elytron; with distinct constriction in profile. Rostrum in basal half with median ridge and pair of submedian ridges, in apical half rugose-punctate; epistome with transverse, subangulate ridge. Pronotum with indistinct subapical constriction; disk coarsely punctate-rugose, sparsely setose; in basal half with pair of sublateral, kidney-shaped impressions. Elytra with striae deeply impressed, each with row of short, suberect scales; intervals costate, subglabrous; apex narrow. Femora with small tooth; metafemur subapically with stridulatory patch. Abdominal ventrite 5 flat, coarsely punctate. Penis (Fig. 61b) with sides of body subparallel; in apical quarter with sides angularly projecting, abruptly converging to slightly extended apex, medially with sparse setae; transfer apparatus flagelliform, 2.3 × longer than body; apodemes 2.3 × as long as body. Intraspecific variation. Length 1.52-1.94 mm. Color of elytra ferruginous or almost black. Body relatively slender or rather roundish. Penis with flagelliform transfer apparatus 2.3-2.4 × longer than body; apodemes 2.3-2.4 × as long as body.

Material examined.

Holotype (MZB): ARC3602 (EMBL # LM656032), West Nusa Tenggara Prov., Sumbawa, Batu Dulang, Gn. Batu Pasak, sample 3, S08°37.524', E117°15.423', 1385 m, 12-IV-2010. Paratypes (SMNK): Sumbawa, Batu Dulang, Gn. Batu Pasak: 2 exx, ARC3604 (EMBL # LM656034), ARC3643 (EMBL # LM656064), ARC3646 (EMBL # LM656067), ARC3651 (EMBL # LM656069), same data as holotype; 1 ex, ARC3657 (EMBL # LM656075), sample 5, S08°37.005', E117°15.790', 1320 m, 18-IV-2010.

Distribution.

West Nusa Tenggara Prov., Sumbawa (Batu Dulang). Elevation: 1385 m.

Etymology.

This epithet is based on the Greek prefix pseudo (false) and the name of Trigonopterus sumbawensis Riedel, sp. n., a sibling species.

Notes.

Trigonopterus pseudosumbawensis Riedel, sp. n. was coded as " Trigonopterus sp. 442".