Trigonopterus lineellus 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 : 43-44

48. Trigonopterus lineellus Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 48a). Length 3.23 mm. Color black; tibiae and antenna ferruginous. Body elongate; in dorsal aspect and in profile with distinct constriction between pronotum and elytron. Rostrum basally with distinct median and pair of submedian carinae, in apical ¼ relatively smooth; in front of eye sparsely squamose. Pronotum densely punctate with large punctures, interspaces smaller than puncture´s diameter. Elytra dorsally with striae deeply incised, intervals with 1-2 rows of punctures; laterally striae impressed as fine lines, strial punctures deep. Femora edentate. Profemur in basal third posteriorly with callus. Metafemur subapically without stridulatory patch. Abdominal ventrites 1-2 concave. Aedeagus (Fig. 48b) apically bluntly angulate, with pair of stout setae; body flattened, sides diverging to shortly before apex; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.83-3.63 mm. Body of females more slender. Female rostrum dorsally subglabrous, punctate, in front of eye sparsely squamose. Female abdominal ventrites 1-2 flat.

Material examined.

Holotype (MZB): ARC0625 (EMBL # FN429282), WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani, S02°31.6', E140°30.4', 1000-1200 m, 30-XI-2007, beaten. Paratypes (ARC, SMNK, ZSM): WEST NEW GUI-NEA, Jayapura Reg., Cyclops Mts, Sentani: 1 ex, ARC0422 (EMBL # FN429133), S02°31.3', E140°30.5', 1200-1420 m, 30.XI.2007; 4 exx, ARC0465 (EMBL # FN429175), ARC0466 (EMBL # FN429176), ARC0621 (EMBL # FN429278), ARC0622 (EMBL # FN429279), S02°31.8', E140°30.5', 600-900 m, 28.XI.2007; 1 ex, ARC0623 (EMBL # FN429280), S02°31.6', E140°30.4', 900-1100 m, 28.XI.2007; 1 ex, ARC0624 (EMBL # FN429281), S02°31.6', E140°30.4', 1000-1200 m, 30.XI.2007; 1 ex (marked as ARC0043"), 950-1450 m, 03-X-1992; 2 exx, 800-1000 m, 07-VIII-1992; 3 exx, 300-1400 m, 10-VIII-1991; 1 ex, 400-800 m, 07 -VIII-1992; 1 ex, 1200-1400 m, 09-VIII-1992; 1 ex, 600-1100 m, 05-X-1991; 1 ex, 850-950 m, 16-X-1996.

Distribution.

Jayapura Reg. (Cyclops Mts). Elevation: 800-1200 m.

Biology.

Collected by beating foliage in montane forests.

Etymology.

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

Notes.

Trigonopterus lineellus Riedel, sp. n. was coded as " Trigonopterus sp. 11" by Riedel et al. (2010) and Tänzler et al. (2012), respectively " Trigonopterus spk" in the EMBL/GenBank/DDBJ databases.