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

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.

Distribution.

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

Etymology.

This epithet is based on the type locality.

Notes.

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