Trigonopterus monticola 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 : 46-47

51. Trigonopterus monticola Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 51a). Length 3.50 mm. Color black, legs and antenna deep ferruginous. Body ovate; with weak constriction between pronotum and elytron; in profile almost evenly convex, elytral base medially weakly swollen and slightly projecting. Rostrum dorsally rugose-punctate in basal half, punctate in apical half. Pronotum densely punctate except along impunctate midline. Elytra densely punctate; strial punctures slightly larger than minute punctures on intervals; striae impressed as fine lines; lateral stria behind humeri with dense row of deep punctures. Profemur and metafemur in basal half with anteroventral ridge terminating as tooth; tooth of profemur small. Metafemur with denticulate dorsoposterior edge; with crenulate anteroventral ridge, terminating in apical 1/3 as acute tooth; subapically with stridulatory patch. Abdominal ventrite 5 with shallow impression, densely punctate, sublaterally setose. Aedeagus (Fig. 51b) with ostium somewhat retracted; with distinct, symmetrical transfer-apparatus; ductus ejaculatorius with bulbus. Intraspecific variation. Length 2.63-3.53 mm. Female rostrum basally punctate, towards apex dorsally subglabrous, with rows of small punctures. Female abdominal ventrite 5 flat, sparsely punctate.

Material examined.

Holotype (MZB): ARC0420 (EMBL # FN429131), WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani, S02°31.7', E140°30.3', 900-1150 m, 21.XI.2007, beaten, marked "stridul. 3". Paratypes (ARC, SMNK, ZSM): WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani: 23 exx, ARC0431 (EMBL # FN429142), S02°31.2', E140°30.5', 1420-1520 m, 30-XI-2007; 2 exx, ARC0450 (EMBL # FN429161), ARC0454 (EMBL # FN429165), S02°31.7', E140°30.3', 850-1000 m, 30.XI.2007; 8 exx, S02°31.6', E140°30.4', 1000-1200 m, 30-XI-2007, beaten; 38 exx, ARC0484 (EMBL # FN429191), ARC0487 (EMBL # FN429194), S02°31.3', E140°30.5', 1200-1420 m, 30-XI-2007; 1 ex, S02°31.425', E140°30.474', 1265 m, 30-XI-2007, sifted; 1 ex, ARC0686 (EMBL # FN429331), S02°31.182', E140°30.542', 1510 m, 30-XI-2007; 17 exx [1 marked "ARC 042"], 950-1450 m, 03-X-1992; 4 exx, 1100-1600 m, 05-X-1991; 17 exx, 1200-1400 m, 09 -VIII-1992; 17 exx, 1100-1600 m, 05-X-1991; 13 exx, 1400 m, 10-VIII-1991; 4 exx, 950-1450 m, 03-X-1992.

Distribution.

Jayapura Reg. (Cyclops Mts). Elevation: 1000-1510 m.

Biology.

Collected by beating foliage in lowland forests.

Etymology.

This epithet is based on the Latin noun monticola (mountain dweller) and refers to the species´ restriction to the upper elevations of the Cyclops Mountains.

Notes. Trigonopterus monticola Riedel, sp. n. was coded as " Trigonopterus sp. 3" by Riedel et al. (2010) and Tänzler et al. (2012), respectively " Trigonopterus spc" in the EMBL/GenBank/DDBJ databases.