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

publication ID

https://dx.doi.org/10.3897/zookeys.280.3906

persistent identifier

https://treatment.plazi.org/id/E994405D-03FC-FA77-40C8-357F81253134

treatment provided by

ZooKeys by Pensoft

scientific name

Trigonopterus talpa Riedel
status

sp. n.

88. Trigonopterus talpa Riedel   ZBK 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).