Trigonopterus rubiginosus 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 : 64

71. Trigonopterus rubiginosus Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 71a). Length 2.93 mm. Color orange-ferruginous; pronotum, tarsi and antennal club black. Body elongate; with distinct constriction between pronotum and elytron; in profile dorsally flat. Rostrum with distinct median and pair of submedian costae, in apical 1/3 scabrous. Pronotum densely punctate; interspaces subequal to puncture´s diameter. Elytra with striae marked by small punctures and hardly visible fine lines, intervals with smaller punctures interspersed; intervals 1-3 near base with larger and denser punctures. Mesocoxa with densely setose patch. Femora edentate. Profemur in basal third posteriorly with callus. Metafemur dorsally with row of white scales; subapically with indistinct stridulatory patch interspersed with coarse punctures. Metatibia ventrally with sparse row of long setae. Aedeagus (Fig. 71b) apically subangulate, with brushes of stout, apically hooked setae; body flattened, sides subparallel; transfer apparatus simple, spiniform; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.81-3.09 mm. No female specimen available.

Material examined.

Holotype (MZB): ARC1756 (EMBL # HE616033), WEST NEW GUINEA, Jayawijaya Reg., Poga, S03°47.631', E138°35.459' to S03°47.406', E138°35.507', 2260-2410 m, 14-VII-2010. Paratypes (ARC, SMNK, ZSM): WEST NEW GUINEA, Jayawijaya Reg.: 13 exx, ARC1736 (EMBL # HE616013), ARC1737 (EMBL # HE616014), ARC1738 (EMBL # HE616015), Poga, S03°48.382', E138°34.780', 2285-2345 m, 13-VII-2010; 1 ex (marked as “ARC0033”), Jiwika, 1800-2300 m, 31-V-1998; 1 ex, Ilugwa, Melanggama, 1900-2200 m, 09-12-IX-1990.

Distribution.

Jayawijaya Reg. (Jiwika, Ilugwa, Poga). Elevation: 2200-2285 m.

Biology.

Beaten from foliage of montane forests.

Etymology.

This epithet is based on the Latin adjective rubiginosus (rusty-red)

Notes.

Trigonopterus rubiginosus Riedel, sp. n. was coded as " Trigonopterus sp. 248" by Tänzler et al. (2012).