Trigonopterus parumsquamosus 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 : 53-54

59. Trigonopterus parumsquamosus Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 59a). Length 2.03 mm. Color black; legs ferruginous; antenna light ferruginous. Body subovate, in dorsal aspect with marked constriction between pronotum and elytron; in profile almost evenly convex. Rostrum dorsally scabrous, basally with indistinct median ridge and pair of sublateral ridges; epistome forming angulate ridge and small median denticle. Pronotum densely punctate with ovate punctures, medially subglabrous; at middle with pair of transverse squamose patches; scales cream-colored, subtriangular. Elytra with striae marked by small punctures; interval 4 at middle with cluster of few cream-colored recumbent scales. Meso- and metafemur with anteroventral ridge simple. Meso- and metatibia in basal half widened, subapically narrowed. Metafemur with denticulate dorsoposterior edge, subapically without stridulatory patch. Aedeagus (Fig. 59b) with sides of body subparallel, apex rounded; transfer apparatus flagelliform; ductus ejaculatorius without bulbus. Intraspecific variation. Length 1.60-2.03 mm. Female rostrum in apical half medially subglabrous, sublaterally punctate, without ridges; epistome simple. Cream-colored scales of pronotum and elytron in some specimens largely abraded.

Material examined.

Holotype (MZB): ARC0527 (EMBL # FN429233), WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani, S02°31.912', E140°30.416', 785 m, 02-XII-2007, sifted. Paratypes (ARC, SMNK, ZSM): WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani: 6 exx, ARC0528 (EMBL # FN429234), ARC0529 (EMBL # FN429235), same data as holotype; 2 exx, ARC0654 (EMBL # FN FN429301), ARC0655 (EMBL # FN429302), S02°31.594', E140°30.407', 1065 m, 21-XI-2007, sifted; 1 ex, ARC0657 (EMBL # FN429304), S02°31.776', E140°30.215', 945 m, 21-XI-2007, sifted; 2 exx, S02°31.683', E140°30.281', 960 m, 21-XI-2007, sifted; 3 exx (1 marked ARC0412), 700 m, 22-XII-2004, sifted; 3 exx, 1000 m, 23-XII-2004, sifted.

Distribution.

Jayapura Reg. (Cyclops Mts). Elevation: 700-1065 m.

Biology.

Sifted from leaf litter in primary forest.

Etymology.

This epithet is based on a combination of the Latin words parum (sparse) and squamosus (scaled) and refers to the few scattered scales.

Notes.

Trigonopterus parumsquamosus Riedel, sp. n. was coded as " Trigonopterus sp. 43" by Riedel et al. (2010) and Tänzler et al. (2012), respectively " Trigonopterus spaq" in the EMBL/GenBank/DDBJ databases.