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Holotype, male (Fig. 67a). Length 2.40 mm. Color of legs and head ferruginous, remainder black. Body in dorsal aspect with marked constriction between pronotum and elytron; with distinct constriction in profile. Rostrum coarsely rugose-punctate, with median ridge and pair of indistinct submedian ridges; epistome with indistinct, transverse, subangulate ridge. Pronotum anterolaterally angularly projecting; with distinct subapical constriction; disk rugose-punctate, interspaces weakly microreticulate; punctures each with one suberect to recumbent scale becoming shorter towards base; with median ridge. Elytra with striae deeply impressed, each with row of slender suberect scales; intervals costate to carinate, almost nude, weakly microreticulate; interval 7 swollen subapically, laterally weakly projecting; sutural interval subapically simple. Femora edentate. Metafemur subapically with stridulatory patch and transverse ridge. Abdominal ventrite 5 in apical half slightly swollen, with median impression, punctate, sparsely setose. Penis (Fig. 67b) with body in profile moderately curved; in dorsal aspect sides subparallel; apex with median, acute triangular extension; transfer apparatus flagelliform, slightly shorter than body; apodemes 2.0 × as long as body; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.28–2.65 mm. Color of body black to dark ferruginous. Female rostrum dorsally with longitudinal furrows; epistome simple. Pronotum with anterolateral knobs rounded, or more distinct and angularly projecting, especially in females. Female abdominal ventrite 5 flat.
Holotype (MZB): ARC2672 (EMBL # LM655930), West Java Prov., Sumedang, Sukajadi, Mt. Cakrabuana, sample 4, S07°01.734', E108°08.059', 1530 m, 19-IV-2012. Paratypes (MZB, SMNK, ZSM): W-Java Prov.: 3 exx, ARC2673 (EMBL # LM655931), ARC2674 (EMBL # LM655932), ARC3591 (EMBL # LM656022), same data as holotype; 4 exx, ARC2675 (EMBL # LM655933), ARC2676 (EMBL # LM655934), ARC2677 (EMBL # LM655935), ARC3592 (EMBL # LM656023), Sumedang, Sukajadi, Mt. Cakrabuana, sample 5, S07°01.804', E108°08.044', 1563 m, 20-IV-2012; 1 ex, ARC2681 (EMBL # LM655939), Sumedang, Sukajadi, Mt. Cakrabuana, sample 6, S07°01.943', E108°08.029', 1593 m, 20-IV-2012; 1 ex, ARC2671 (EMBL # LM655929), Sumedang, Sukajadi, Mt. Cakrabuana, sample 3, S07°01.493', E108°08.065', 1394 m, 19-IV-2012; 5 exx, ARC0157, ARC0408, Ciamis, Mt. Sawal, Blok Cireong, sample 2, S07°14.127', E108°15.568', 1120 m, 01-X-2005; 3 exx, Batu Cakra, sample 1, S07°14.920', E108°15.762', 990 m, 01-X-2005; 3 exx, ARC2505 (EMBL # LM655842), ARC2506 (EMBL # LM655843), ARC2507 (EMBL # LM655844), Panjalu, Tembong, sample 3, S07°11.102', E108°16.310', 1569 m, 29-XI-2011.
W-Java Prov. (Mt. Cakrabuana, Mt. Sawal). Elevation: 990–1569 m.
This epithet is a combination of the Latin adjective rugosus (wrinkled) and the participle striatus (provided with furrows) and refers to the species´ body-sculpture.
Trigonopterus rugosostriatus Riedel, sp. n. was coded as “Trigonopterus sp. 354”.
- 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