Trigonopterus scharfi 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 : 67-68

76. Trigonopterus scharfi Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 76a). Length 1.40 mm. Color black; head, antenna, tarsi and tibiae ferruginous. Body subovate; in dorsal aspect and in profile with distinct constriction between pronotum and elytron. Rostrum with indistinct, median ridge, sparsely setose. Eyes in subdorsal position, approximate. Pronotum with weak subapical constriction; disk with median ridge; densely punctate with large punctures; each puncture with curved, suberect, yellowish scale. Elytra with striae deeply impressed; each puncture with curved, suberect, yellowish scale; intervals weakly costate, subglabrous. Meso- and metafemur ventrally dentate. Metafemur subapically with stridulatory patch. Aedeagus (Fig. 76b) with apex extended, pointed, curved ventrad; transfer apparatus spiniform; ductus ejaculatorius with bulbus. Intraspecific variation. Length 1.40-1.60 mm. Female rostrum dorsally slightly flattened, in apical half subglabrous, weakly punctate.

Material examined.

Holotype (MZB): ARC0536 (EMBL # FN429242), WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, S02°31.594', E140°30.407', 1065 m, 21-XI-2007, sifted. Paratypes (ARC, SMNK, ZSM): WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani: 2 exx, ARC0535 (EMBL # FN429241), ARC0537 (EMBL # FN429243), same data as holotype; 17 exx, S02°31.383', E140°30.490', 1275 m, 30-XI-2007, sifted; 20 exx, ARC0678 (EMBL # FN429323), ARC0679 (EMBL # FN429324), S02°31.281', E140°30.535', 1420 m, 30-XI-2007, sifted; 67 exx, ARC0684 (EMBL # FN429329), ARC0685 (EMBL # FN429330), S02°31.182', E140°30.542', 1510 m, 30-XI-2007, sifted; 6 exx, S02°31.425', E140°30.474', 1265 m, 30-XI-2007, sifted; 1 ex, S02°31.683', E140°30.281', 960 m, 21-XI-2007, sifted; 14 exx, 1000 m, 23-XII-2004, sifted; 5 exx, S02°31.594', E140°30.407', 1065 m, 21-XI-2007, sifted; 2 exx, Sentani, S02°31.603', E140°30.434', 1095 m, 28-XI-07, sifted; 5 exx, 1100 m, 23-XII-2004, sifted; 6 exx, 1200-1400 m, 09-VIII-1991, sifted; 44 exx, 300-1400 m, 10-VIII-1991, sifted; 2 exx, S02°31.516', E140°30.436', 1150 m, 21-XI-2007, sifted.

Distribution.

Jayapura Reg. (Cyclops Mts). Elevation: 960-1510 m.

Biology.

Sifted from leaf litter in montane forest.

Etymology.

This species is named in honor of Stefan Scharf (Karlsruhe), who has spent months creating a 3D computer model of one of the paratypes.

Notes.

Trigonopterus scharfi Riedel, sp. n. was coded as " Trigonopterus sp. 51" by Riedel et al. (2010) and Tänzler et al. (2012), respectively " Trigonopterus spay" in the EMBL/GenBank/DDBJ databases.