Trigonopterus diengensis 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: 24-25

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Trigonopterus diengensis Riedel

sp. n.

Taxon classification Animalia Coleoptera Curculionidae

24. Trigonopterus diengensis Riedel  sp. n.

Diagnostic description.

Holotype, male (Fig. 24a). Length 2.14 mm. Color of antennae and legs ferruginous; remainder black. Body subovate; in dorsal aspect and in profile with distinct constriction between pronotum and elytron. Rostrum in apical half rugose-punctate, in basal half with median ridge and pair of submedian ridges; with sparse suberect scales; epistome simple. Pronotum with shallow subapical constriction; disk coarsely punctate, scabrous; each puncture containing suberect spatu late scale inserting at posterior rim. Elytra with striae marked by deep punctures; in front of each puncture with elongate-claviform, erect scale; intervals tuberculate, partly transversely corrugate, subglabrous; interval 7 subapically costate; sutural interval more distinctly raised. Meso- and metafemur ventrally weakly dentate. Metafemur subapically without stridulatory patch. Abdominal ventrite 5 flat, with sparse transverse rows of setae. Penis (Fig. 24b) with apex asymmetrically extended to the left; apical extension of medium-size; basal orifice ventrally with rim; apodemes short, 0.5 × as long as body; ductus ejaculatorius with bulbus. Intraspecific variation. Length 1.92-2.36 mm. Female rostrum dorsally in apical half subglabrous, densely punctate; epistome simple.

Material examined.

Holotype (MZB): ARC0290 (EMBL # LM655480), C-Java Prov., N slopes of Dieng figau, Petungkriyono, mountain N Tinalum, sample 1, S07°06.418', E109°44.514', 1115 m, 22-VIII-2006. Paratypes (MZB, SMNK, ZSM): 13 exx, ARC0288 (EMBL # LM655478), ARC0289 (EMBL # LM655479), ARC0291 (EMBL # LM655481), ARC0292 (EMBL # LM655482), same data as holotype.


C-Java Prov. (Dieng). Elevation: 1115 m.


This epithet is based on the type locality.


Trigonopterus diengensis  Riedel, sp. n. was coded as " Trigonopterus  sp. 335".