Trigonopterus punctulatus 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 : 60-61

67. Trigonopterus punctulatus Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 67a). Length 3.72 mm. Color black, legs and antenna deep ferruginous. Body ovate; almost without constriction between pronotum and elytron; in profile evenly convex. Rostrum dorsally tricarinate, with distinct median and pair of lateral carinae to shortly before apex. Pronotum densely punctate. Elytra densely punctate; strial punctures slightly larger than minute punctures on intervals; striae impressed as fine lines; lateral stria behind humeri simple, not deepened. Femora edentate. Metafemur with denticulate dorsoposterior edge; subapically with stridulatory patch. Mesotibia subapically narrow, subbasally widened, dorsal contour with angulation. Metatibia without premucro; with small suprauncal projection. Aedeagus (Fig. 67b) apically subangulate; dorsum sublaterally sparsely setose; transfer apparatus spiniform, curved; ductus ejaculatorius with bulbus. Intraspecific variation. Length 2.92-3.92 mm. Female rostrum basally punctate, towards apex rugose-punctate.

Material examined.

Holotype (MZB): ARC419 (EMBL # FN429130), WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani, S02°31.7', E140°30.3', 900-1150 m, 21-XI-2007, beaten, marked "stridul. 2". Paratypes (ARC, NHMB, SMNK, ZSM): WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani: 10 exx, ARC0424 (EMBL # FN429135), ARC0482 (EMBL # FN429189), S02°31.3', E140°30.5', 1200-1420 m, 30.XI.2007; 1 ex, ARC0664 (EMBL # FN429311), S02°31.8', E140°30.2', 630-800 m, 21-XI-2007; 8 exx, S02°31.794', E140°30.190', 800-860 m, 21-XI-2007, “Mim2”, beaten; 8 exx, S02°31.7', E140°30.3', 860-1150 m, 21-XI-2007, beaten; 7 exx, S02°31.6', E140°30.4', 900-1100 m, 28-XI-2007, beaten; 3 exx, ARC0680 (EMBL # FN429325), ARC0681 (EMBL # FN429326), S02°31.2', E140°30.5', 1420-1520 m, 30-XI-2007; 1 ex, ARC0696 (EMBL # FN429340), S02°32.2', E140°30.4', 545-700 m, 02-XII-2007; 5 exx, S02°31.7', E140°30.3', 850-1000 m, 30-XI-2007, beaten; 5 exx, S02°31.6', E140°30.4', 1000-1200 m, 30-XI-2007, beaten; 1 ex, S02°31.603', E140°30.434', 1095 m, 28-XI-2007, sifted; 14 exx [1 marked "ARC 041"], 950-1450 m, 03-X-1992; 4 exx, 1100-1600 m, 05-X1991; 7 exx, 1200-1400 m, 09-VIII-1992; 10 exx, 1100-1600 m, 05-X-1991; 5 exx, 1400 m, 10-VIII-1991; 5 exx, 950-1450 m, 03-X-1992; 5 exx, Lake Sentani, 300 m, III-1992.

Distribution.

Jayapura Reg. (Cyclops Mts). Elevation: 300-1420 m.

Biology.

Collected by beating foliage in primary forests.

Etymology.

This epithet is based on the Latin participle punctulatus (provided with little punctures) and refers to the species´ surface scattered with small punctures.

Notes.

Trigonopterus punctulatus Riedel, sp. n. was coded as " Trigonopterus sp. 2" by Riedel et al. (2010) and Tänzler et al. (2012), respectively " Trigonopterus spb" in the EMBL/GenBank/DDBJ databases.