Trigonopterus gedensis 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: 35-36

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Trigonopterus gedensis Riedel

sp. n.

Taxon classification Animalia Coleoptera Curculionidae

36. Trigonopterus gedensis Riedel  sp. n.

Diagnostic description.

Holotype, male (Fig. 36a). Length 2.53 mm. Color black, tarsi and antennae ferruginous. Body elongate; 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 irregular submedian ridges; epistome with indistinct, transverse, subangulate ridge. Pronotum with disk scabrous; with median ridge; with indistinct subapical constriction. Elytra with striae deeply impressed, each with row of short subrecumbent bristles; intervals costate-tuberculate, almost nude; interval 7 swollen subapically, laterally weakly projecting; sutural interval subapically with tooth. Femora edentate. Metafemur subapically with stridulatory patch and transverse rows of denticles. Abdominal ventrite 5 flat, punctate, sparsely setose. Penis (Fig. 36b) with body in profile moderately curved; in dorsal aspect sides subparallel; apex with median, acute triangular extension; transfer apparatus flagelliform, as long as body; apodemes 2.0 × as long as body; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.30-2.55 mm. Female rostrum dorsally with pair of lateral furrows, in apical half subglabrous, coarsely punctate; epistome simple. Female elytra with sutural interval subapically with relatively indistinct knob.

Material examined.

Holotype (MZB): ARC0249 (EMBL # LM655441), West Java Prov., Cianjur, above kebun Gede, sample 2, S06°47.735', E107°00.658', 2005 m, sifted. Paratypes (MZB, SMNK, ZSM): W-Java Prov., Mt. Gede: 5 exx, ARC0250 (EMBL # LM655442), ARC0251 (EMBL # LM655443), ARC0252 (EMBL # LM655444), ARC0253 (EMBL # LM655445), same data as holotype; 22 exx, ARC0003, Cibodas, 2000 m, 07-VI-2002; 4 exx, ARC2664 (EMBL # LM655922), Sukabumi, Cisaat, Situ Gunung, sample 5, S06°47.912', E106°56.457', 1940 m, 16-IV-2012; 5 exx, ARC2665 (EMBL # LM655923), Sukabumi, Cisaat, Situ Gunung, sample 6, S06°47.706', E106°56.560', 2117 m, 16-IV-2012.


W-Java Prov., (Mt. Gede). Elevation: 1940-2117 m.


This epithet is based on the type locality.


Trigonopterus gedensis  Riedel, sp. n. was coded as " Trigonopterus  sp. 307" by Tänzler et al. (2014).