Trigonopterus agathis Riedel

Riedel, Alexander, Sagata, Katayo, Surbakti, Suriani, Rene Taenzler, & Michael Balke,, 2013, One hundred and one new species of Trigonopterus weevils from New Guinea, ZooKeys 280, pp. 1-150 : 6-7

3. Trigonopterus agathis Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 3a). Length 2.04 mm. Color black; legs and antenna ferruginous. Body subglobose; in dorsal aspect with weak constriction between pronotum and elytron; with more distinct constriction in profile. Rostrum in basal half with 3 ridges posteriorly continued to and uniting on forehead; apical half scabrous; epistome smooth, forming indistinct transverse ridge. Pronotum punctate-rugose, interspaces between punctures forming longitudinal wrinkles; with distinct subapical constriction. Elytra subglabrous, striae deeply impressed, intervals costate; apex extended ventrad, beak-shaped. Femora edentate. Metafemur with denticulate dorsoposterior edge, subapically without stridulatory patch. Abdominal ven ter steeply flexed dorsad, concealed in elytral capsule. Aedeagus (Fig. 3b) with apex medially pointed; body in apical half with broad depression visible in lateral aspect; in basal half with x-shaped sclerite; subglabrous, with sparse indistinct setae; transfer apparatus markedly flagelliform, longer than body, curled, pointing apicad. Intraspecific variation. Length 1.86-2.04 mm.

Material examined.

Holotype (MZB): ARC1688 (EMBL # HE615975), WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Angkasa indah, S02°30.346', E140°42.087', 490 m, 28-VI-2010, sifted. Paratypes (SMNK): 4 exx, ARC1689 (EMBL # HE615976), same data as holotype.

Distribution.

Jayapura Reg. (Cyclops Mts). Elevation: 490 m.

Biology.

Sifted from leaf litter in primary forest.

Etymology.

This epithet is based on the Greek noun agathis (ball, globe) in apposition and refers to the species' habitus.

Notes.

Trigonopterus agathis Riedel, sp. n. was coded as " Trigonopterus sp. 109" by Tänzler et al. (2012).