Trigonopterus viridescens 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 : 87

98. Trigonopterus viridescens Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 98a). Length 2.86 mm. Color black with marked greenish lustre. Body slender, ovate; without constriction between pronotum and elytron; in profile evenly convex. Rostrum weakly sculptured, dorsally in basal half with pair of shallow sublateral furrows, with sparse rows of mesad-directed scales, sparsely punctate. Forehead laterally with pair of cavities bordering eyes. Eyes with dorsal margin carinate. Pronotum subglabrous, sparsely punctate with minute punctures. Elytra subglabrous, striae hardly visible. Femora subglabrous, sparsely punctate and squamose, without teeth. Metafemur with smooth dorsoposterior edge; subapically without stridulatory patch. Mesotibia subapically with premucro larger than uncus. Metatibia with premucro somewhat smaller than uncus. Aedeagus (Fig. 98b). Apex symmetrical, with median, pointed extension; transfer apparatus spiniform, apically bordered by pair of curved sclerites; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.48-3.05 mm. Female meso- and metatibia subapically with minute premucro.

Material examined.

Holotype (MZB): ARC0434 (EMBL # FN429145), 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 GUINEA, Jayapura Reg., Cyclops Mts, Sentani: 2 exx, ARC0433 (EMBL # FN429144), ARC0435 (EMBL # FN429146), same data as holotype; 1 ex, 1100-1600 m, 05-X-1991; 5 exx, ARC0671 (PCR failed), ARC0672 (PCR failed), S02°31.3', E140°30.5', 1200-1420 m, 30-XI-2007.

Distribution.

Jayapura Reg. (Cyclops Mts). Elevation: 1420-1520 m.

Biology.

Collected by beating foliage in montane crippled forests.

Etymology.

This epithet is based on the Latin participle viridescens (greenish) and refers to the species´ coloration.

Notes.

Trigonopterus viridescens Riedel, sp. n. was coded as " Trigonopterus sp. 24" by Riedel et al. (2010) and Tänzler et al. (2012), respectively " Trigonopterus spx" in the EMBL/GenBank/DDBJ databases.