Trigonopterus nothofagorum 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 : 51

56. Trigonopterus nothofagorum Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 56a). Length 2.10 mm. Color ferruginous, center of pronotum black. Body subrhomboid; in dorsal aspect with marked constriction between pronotum and elytron; in profile with shallow constriction. Rostrum with indistinct median wrinkle and pair of submedian wrinkles, coarsely punctate; epistome forming angulate ridge, medially with weak denticle. Pronotum with subapical constriction; with indistinct lateral flanges; coarsely punctate-reticulate; punctures each with one ochre scale. Elytra heart-shaped, humeri prominent; striae deeply incised; intervals costate; sparsely squamose with ochre scales. Femora ventrally markedly dentate. Metafemur subapically with stridulatory patch. Onychium subequal to tarsomere 3, fusiform. Aedeagus (Fig. 56b) with apex rounded; transfer apparatus flagelliform; ductus ejaculatorius without bulbus. Intraspecific variation. Length 1.78-2.17 mm. Color ranging from ferruginous with black spots to largely black with few ferruginous spots. Body of females subovate. Female rostrum with rows of coarse punctures; epistome simple. Female elytra with humeri simple, not prominent as in males. Femoral tooth smaller or larger.

Material examined.

Holotype (MZB): ARC0786 (EMBL # HE615469), WEST NEW GUINEA, Manokwari, Arfak Mts, S01°04.087', E133°54.268', 1520 m, 08-XII-2007, sifted. Paratypes (SMNK, ZSM): 25 exx, ARC0787 (EMBL # HE615470), ARC0788 (EMBL # HE615471), ARC0789 (EMBL # HE615472), same data as holotype; 10 exx, Mokwam, Siyoubrig, S01°06.107', E133°54.888', 1530 m, 10-XII-2007, sifted.

Distribution.

Manokwari Reg. (Arfak Mts). Elevation: 1520-1530 m.

Biology.

Sifted from leaf litter in montane forest dominated by Nothofagus .

Etymology.

This epithet is based on the plant genus Nothofagus .

Notes.

Trigonopterus nothofagorum Riedel, sp. n. was coded as " Trigonopterus sp. 235" by Tänzler et al. (2012).