Trigonopterus eremitus 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 : 26-27

28. Trigonopterus eremitus Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 28a). Length 3.66 mm. Color black; tarsi and antenna ferruginous. Body ovate; with weak constriction between pronotum and elytron; in profile evenly convex. Rostrum dorsally with distinct median carina and sparse rows of upcurved scales; submedian ridges indistinct, irregular. Pronotum densely punctate except along impunctate midline. Elytra punctate with minute punctures, es pecially on intervals; strial punctures slightly larger; striae impressed as fine lines; lateral stria behind humeri simple, not deepened. Femora edentate. Metafemur with denticulate dorsoposterior edge; subapically with fine stridulatory patch. Metatibia apically with uncus, without premucro. Abdominal ventrite 5 flat, densely setose with suberect setae. Aedeagus (Fig. 28b) slightly asymmetrical; with distinct, asymmetrical transfer-apparatus; ductus ejaculatorius with bulbus. Intraspecific variation. Length 3.38-3.72 mm. Female rostrum dorsally in basal half with median and pair of submedian ridges, apical half punctate. Female abdominal ventrite 5 flat, sparsely setose with recumbent setae.

Material examined.

Holotype (MZB): ARC426 (EMBL # FN429137), WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani, S02°31.2', E140°30.5', 1420-1520 m, 30-XI-2007, beaten. Paratypes (ARC, SMNK, ZSM): WEST NEW GUI-NEA, Jayapura Reg., Cyclops Mts, Sentani: 9 exx, ARC0425 (EMBL # FN429136), ARC0427 (EMBL # FN429138), same data as holotype; 1 ex (marked as “ARC0411”), 1200-1400 m, 9-VIII-1992; 1 ex, 1100-1600 m, 5.X.1991.

Distribution.

Jayapura Reg. (Cyclops Mts). Elevation: 1400-1420 m.

Biology.

Collected by beating foliage in montane forests.

Etymology.

This epithet is the latinized form of the Greek noun eremites (hermit) and refers to the species´ restricted occurrence in the montane forests of the Cyclops Mountains.

Notes.

Trigonopterus eremitus Riedel, sp. n. was coded as " Trigonopterus sp. 6" by Riedel et al. (2010) and Tänzler et al. (2012), respectively " Trigonopterus spf" in the EMBL/GenBank/DDBJ databases.