Trigonopterus lineatus 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 : 42-43

47. Trigonopterus lineatus Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 47a). Length 3.00 mm. Color black; tarsi and antenna ferruginous. Body subrhomboid; in dorsal aspect and in profile with distinct constriction between pronotum and elytron. Rostrum in basal half with median costa bordered by furrows; in front of eyes with flat lateral extensions; subapically scabrous, with suberect scales; epistome smooth, posteriorly forming transverse, angulate ridge. Pronotum with subapical constriction, anteriorly densely coarsely punctate, with sparse lanceolate scales; disk subglabrous, with sparse punctures. Elytra with striae 1-6 deeply incised; intervals flat, with rows of small punctures and minute recumbent setae; laterally subglabrous; apex subangulate, with pair of sublateral knobs; apex extended ventrad, slightly beak-shaped. Femora edentate. Metafemur with weakly denticulate dorsoposterior edge, subapically with stridulatory patch. Aedeagus (Fig. 47b) apically simple, weakly rounded, without setae; with complex, symmetrical transfer apparatus; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.78-3.13 mm. Female rostrum only basally with median ridge; in apical third punctate, epistome without distinct transverse ridge.

Material examined.

Holotype (MZB): ARC0520 (EMBL # FN429226), WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani, S02°31.912', E140°30.416', 785 m, 02-XII-2007, sifted. Paratypes (SMNK, ZSM): WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani: 1 ex, ARC0519 (EMBL # FN429225), same data as holotype; 1 ex, ARC0510 (EMBL # FN429216), S02°32.031', E140°30.412', 710 m, 02-XII-2007, sifted; 1 ex, ARC0656 (EMBL # FN429303), S02°31.683', E140°30.281', 960 m, 21-XI-2007, sifted.

Distribution.

Jayapura Reg. (Cyclops Mts). Elevation: 710-960 m.

Biology.

Sifted from leaf litter in primary forest.

Etymology.

This epithet is based on the Latin participle lineatus (marked with parallel lines) and refers to the elytral sculpture.

Notes.

Trigonopterus lineatus Riedel, sp. n. was coded as " Trigonopterus sp. 35" by Riedel et al. (2010) and Tänzler et al. (2012), respectively " Trigonopterus spai" in the EMBL/GenBank/DDBJ databases.