Trigonopterus talpa 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 : 78

88. Trigonopterus talpa Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 88a). Length 2.63 mm. Color black; legs dark ferruginous; antenna light ferruginous. Body subrhomboid; with marked constriction between pronotum and elytron; in profile evenly convex to subapical constriction of pronotum. Rostrum with pair of sublateral furrows converging posteriorly on forehead; pair of submedian furrows shallow; epistome forming angulate ridge and median denticle. Pronotum with marked subapical constriction, sides weakly converging, behind subapical constriction with angular protrusions; disk with pair of deep furrows curving anteriad joining subapical constriction; center of disk coriaceous, sparsely punctate; laterally rugose. Elytra subovate, apically subangulate; striae weakly impressed; surface dull, microgranulate, almost nude, with sparse minute setae; interval 7 subapically forming distinct, weakly denticulate ridge; apex extended ventrad, slightly beak-shaped in profile. Femora edentate. Meso- and metatibia in basal half widened, subapically narrowed. Metafemur with denticulate dorsoposterior edge, subapically without stridulatory patch. Aedeagus (Fig. 88b) with body parallel-sided; apex medially extended into subtruncate tip; transfer apparatus thick spiniform; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.30-2.63 mm. Female rostrum in apical half medially subglabrous, with two rows of punctures; epistome simple.

Material examined.

Holotype (MZB): ARC1686 (EMBL # HE615973), WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Angkasa indah, S02°30.346', E140°42.087', 490 m, 28-VI-2010, sifted. Paratype (SMNK): 1 ex, ARC1687 (EMBL # HE615974), 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 Latin noun talpa (mole) in apposition and refers both to the species´ habitus and its edaphic habits.

Notes.

Trigonopterus talpa Riedel, sp. n. was coded as " Trigonopterus sp. 77" by Tänzler et al. (2012).