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Holotype, male (Fig. 41a). Length 2.65 mm. Color of antennae light ferruginous, pronotum black, remainder dark ferruginous. Body in dorsal aspect with marked constriction between pronotum and elytron; in profile dorsally convex, with shallow constriction. Rostrum with median and pair of submedian ridges; intervening furrows containing row of punctures, with rows of erect scales; epistome with transverse, irregular ridge. Pronotum without subapical constriction; disk densely punctate; interspaces subglabrous; each puncture containing small recumbent seta. Elytra with striae marked by small punctures, each containing minute seta; intervals flat, subglabrous, with interspersed punctures; elytral apex subangulate, densely coarsely punctate, suture incised. Femora with crenate anteroventral ridge. Metafemur subapically with stridulatory patch. Dorsal edge of tibiae with subbasal angulation, dentate in pro- and mesotibia. Abdominal ventrites 1–2 weakly concave, subglabrous, with sparse erect scales; abdominal ventrite 5 flat, with coarse shallow punctures, microreticulate. Penis (Fig. 41b) with sides of body subparallel; apex subangulate, with median triangular extension; endophallus with complex structures, several sclerites, containing few denticles; transfer apparatus complex; apodemes 2.6 × as long as body; ductus ejaculatorius without distinct bulbus. Intraspecific variation. Length 2.35–2.65 mm. Female rostrum in apical half subglabrous, sparsely punctate-rugose; epistome simple. Female elytral apex simple, suture very weekly incised.
Holotype (MZB): ARC1421 (EMBL # LM655548), E-Kalimantan Prov., Berau Dist., 1 km off road Tanjungredeb - Tanjungselor, ca. 45 km N of Tanjungredeb, N02°29.55', E117°28.77', 190 m, 29-IX/03-X-2008 (MZB). Paratypes (SMNK): 2 exx, ARC1422 (EMBL # LM655549), ARC1423 (EMBL # LM655550), same data as holotype.
E-Kalimantan Prov. (Tanjungredeb). Elevation: 190 m.
This epithet is based on the Indonesian name for Borneo, Kalimantan.
- Riedel, A; Tänzler, R; Balke, M; Rahmadi, C; Suhardjono, Y; 2014: Ninety-eight new species of Trigonopterus weevils from Sundaland and the Lesser Sunda Islands ZooKeys, (467): 1-162. doi
- Tänzler R, Toussaint E, Suhardjono Y, Balke M, Riedel A (2014) Multiple transgressions of Wallace’s Line explain diversity of flightless Trigonopterus weevils on Bali. Proceedings of the Royal Society B: Biological Sciences 281: 20132528. doi: 10.1098/rspb.2013.2528