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Holotype, male (Fig. 92a). Length 2.90 mm. Color black; antenna light ferruginous, legs dark ferruginous. Body subovate, with marked constriction between pronotum and elytron; in profile almost evenly convex. Rostrum in basal half with median carina continued to forehead; with pair of shorter submedian costae; at middle with anteriorly hollowed, heart-shaped protuberance; between protuberance and epistome relatively flat, with sparse erect setae; epistome with transverse, angulate ridge provided with three teeth, median tooth shorter than lateral ones. Pronotum with subapical constriction; disk densely punctate-rugose, lower parts microreticulate, median line subglabrous; laterally above procoxa with cavity. Elytra with striae deeply incised, intervals costate, densely punctate. Femora edentate. Metafemur with denticulate dorsoposterior edge, subapically with stridulatory patch. Abdominal ventrite 2 projecting dentiform over elytral edge in profile. Aedeagus (Fig. 92b) before angulate apex widened; transfer apparatus small, spiniform; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.14–2.90 mm. Female rostrum dorsally with low median costa bearing double-row of punctures, with lateral pair of furrows; epistome simple.
Holotype (MZB): ARC0765 (EMBL # HE615448), WEST NEW GUINEA, Manokwari, Mt. Meja, S00°51.497', E134°04.949', 220 m, 05-XII-2007, sifted. Paratypes (ARC, SMNK, ZSM): WEST NEW GUINEA, Manokwari, Mt. Meja: 2 exx, ARC0606 (EMBL # HE615332), ARC0607 (EMBL # HE615333), same data as holotype; 11 exx, S00°51.400', E134°04.918', 225 m, 06-XII-2007, sifted; 1 ex, 22-23-IX-1990, sifted; 9 exx, 200 m, 19-IV-1993, sifted; 2 exx, 200 m, 30-XII-2000, sifted; 8 exx, 200 m, 30-XII-2004, sifted.
Manokwari Reg. (Mt. Meja). Elevation: 200–225 m.
Sifted from leaf litter in lowland forest.
Etymology. This epithet is composed of the Latin prefix tri- (three) and the participle dentatus (toothed) and refers to the three apical teeth of the male rostrum.
- 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
- 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