Trigonopterus subglabratus 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 : 75-76

85. Trigonopterus subglabratus Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 85a). Length 2.09 mm. Color ferruginous, pronotum and elytra black with bronze lustre. Body subovate; without constriction between pronotum and elytron; in profile evenly convex. Rostrum with weak median ridge, pair of submedian furrows, sparsely squamose. Pronotum anteriorly sparsely punctate with small punctures, with yellowish ovate to elongate scales; disk subglabrous. Elytra subglabrous, striae obsolete except stria 4 and suture weakly incised; subapically laterally sparsely squamose. Anteroventral ridges of femora simple. Metafemur with dorsoposterior edge simple, subapically without stridulatory patch. Metaventrite and abdominal ventrites 1-2 forming common concavity. Abdominal ventrite 5 markedly swollen, subapi cally with shallow impression. Aedeagus (Fig. 85b) with apex rounded; in profile dorsal contour forming right angle; transfer apparatus very short, spiniform. Intraspecific variation. Length 2.09-2.48 mm. Female rostrum in apical half sparsely punctate with minute punctures. Female metaventrite and abdominal ventrites 1-2 less markedly concave.

Material examined.

Holotype (MZB): ARC0638 (EMBL # FN429291), WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Doyo, S02°32.478', E140°28.835', 365 m, 27-XI-2007, sifted. Paratypes (ARC, SMNK, ZSM): WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani: 1 ex, ARC0514 (EMBL # FN429220), S02°32.031', E140°30.412', 710 m, 02-XII-2007, sifted; 2 exx, ARC0633 (EMBL # FN429288), ARC0634 (EMBL # FN429289), Sentani, S02°32.221', E140°30.526', 575 m, 19-XI-2007, sifted.

Distribution.

Jayapura Reg. (Cyclops Mts). Elevation: 365-710 m.

Biology.

Sifted from leaf litter in primary forest.

Etymology.

This epithet is based on a combination of the Latin prefix sub- (less than; almost) and the participle glabratus (smoothened). It refers to its smooth body surface.

Notes.

Trigonopterus subglabratus Riedel, sp. n. was coded as " Trigonopterus sp. 47" by Riedel et al. (2010) and Tänzler et al. (2012), respectively " Trigonopterus spat" in the EMBL/GenBank/DDBJ databases.