Trigonopterus pangandaranensis Riedel

Riedel, Alexander, Taenzler, Rene, Balke, Michael, Rahmadi, Cahyo & Suhardjono, Yayuk R., 2014, Ninety-eight new species of Trigonopterus weevils from Sundaland and the Lesser Sunda Islands, ZooKeys 467, pp. 1-162: 50-51

publication ID

publication LSID

persistent identifier

taxon LSID

treatment provided by

ZooKeys by Pensoft

scientific name

Trigonopterus pangandaranensis Riedel

sp. n.

Taxon classification Animalia Coleoptera Curculionidae

53. Trigonopterus pangandaranensis Riedel  sp. n.

Diagnostic description.

Holotype, male (Fig. 53a). Length 2.95 mm. Color of legs and head ferruginous, remainder black. Body elongate; in dorsal aspect with marked constriction between pronotum and elytron; in profile dorsally without constriction. Rostrum dorsally microreticulate; with median carina terminating on forehead; with pair of submedian ridges; intervening furrows each with sparse row of erect scales; epistome with transverse, angulate ridge forming distinct median denticle. Pronotum anterolaterally subangularly projecting; without distinct subapical constriction; disk coarsely punctate; each punctures containing recumbent scale, subapically with suberect scale; without median ridge. Elytra with striae deeply impressed; each with row of small recumbent scales; intervals almost flat; interval 7 swollen subapically, laterally weakly projecting; apex extended ventrad, beak-shaped. Meso- and metafemur with crenulate anteroventral ridge terminating with blunt tooth. Metafemur subapically with stridulatory patch and transverse row of denticles. Abdominal ventrite 5 subapically with shallow pit. Penis (Fig. 53b) with body in profile weakly curved ventrad; in dorsal aspect sides subparallel; apex with subangulate notch; transfer apparatus thick flagelliform, ca. as long as body; apodemes 1.9 × as long as body; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.65-2.98 mm. Body of females slender; males slightly wider, especially between humeri. Female rostrum dorsally with pair of lateral furrows, pair of submedian furrows continued apicad by coarse punctures; epistome simple. Female abdominal ventrite 5 flat.

Material examined.

Holotype (MZB): ARC2682 (EMBL # LM655940), West Java Prov., Ciamis, Pangandaran, sample 2, S07°42.836', E108°39.478', 157 m, 22-IV-2012. Paratypes (SMNK, ZSM): W-Java Prov., Ciamis, Pangandaran: 3 exx, ARC2683 (EMBL # LM655941), same data as holotype; 3 exx, ARC2686 (EMBL # LM655944), ARC2687 (EMBL # LM655945), ARC3637 (EMBL # LM656059), sample 3, S07°43.070', E108°39.634', 156 m, 22-IV-2012.


W-Java Prov. (Pangandaran). Elevation: 156-157 m.


This epithet is based on the type locality, Pangandaran.


Trigonopterus pangandaranensis  Riedel, sp. n. was coded as " Trigonopterus  sp. 372".