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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.
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.
Jayapura Reg. (Cyclops Mts). Elevation: 700–1065 m.
Sifted from leaf litter in primary forest.
This epithet is based on a combination of the Latin words parum (sparse) and squamosus (scaled) and refers to the few scattered scales.
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.
- Riedel, A; Sagata, K; Surbakti, S; Rene Tänzler, ; Michael Balke, ; 2013: One hundred and one new species of Trigonopterus weevils from New Guinea ZooKeys, 280: 1-150. doi
- Riedel A, Daawia D, Balke M (2010) Deep cox1 divergence and hyperdiversity of Trigonopterus weevils in a New Guinea mountain range (Coleoptera, Curculionidae). Zoologica Scripta, 39 (1): 63-74. doi: 10.1111/j.1463-6409.2009.00404.x
- Tänzler R, Sagata K, Surbakti S, Balke M, Riedel A (2012) DNA barcoding for community ecology - how to tackle a hyperdiverse, mostly undescribed Melanesian fauna. PLoS ONE 7 (1): e28832. doi: 10.1371/journal.pone.0028832