Trigonopterus foveatus 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: 33-34

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Trigonopterus foveatus Riedel

sp. n.

Taxon classification Animalia Coleoptera Curculionidae

34. Trigonopterus foveatus Riedel  sp. n.

Diagnostic description.

Holotype, male (Fig. 34a). Length 2.06 mm. Color of head and legs ferruginous; remainder black. Body subovate; in dorsal aspect and in profile with distinct constriction between pronotum and elytron. Rostrum in apical half scabrous, in basal half with median ridge and pair of submedian ridges; with sparse suberect scales; epistome with transverse, angulate ridge. Pronotum with shallow subapical constriction; disk scabrous, coarsely punctate; interspaces dull, microreticulate; each puncture containing suberect clavate scale inserting at posterior rim. Elytra with striae marked by deep punctures; in front of each puncture with elongate-claviform, erect scale; intervals costate, subglabrous; interval 7 subapically costate; sutural interval simple. Femora edentate. Metafemur subapically without stridulatory patch. Abdominal ventrite 5 flat, microreticulate, with sparse scales. Penis (Fig. 34b) with apex asymmetrically extended to the left; apical extension short; endophallus at middle of body with pair of elongate parallel sclerites; basal orifice ventrally with rim; apodemes short, 0.5 × as long as body; ductus ejaculatorius with bulbus. Intraspecific variation. Length 2.02-2.20 mm. Female rostrum dorsally in apical half subglabrous, densely punctate; epistome simple. Endophallic sclerites in specimens from Leuweung Sancang with subbasal sclerite shorter, pair of subapical sclerites less distinct.

Material examined.

Holotype (MZB): ARC2690 (EMBL # LM655948), W-Java, Ciamis, Pangandaran, sample 1, S07°42.836', E108°39.478', 157 m, 22-IV-2012. Paratypes (MZB, SMNK, ZSM): W-Java: 4 exx, ARC2684 (EMBL # LM655942), ARC2685 (EMBL # LM655943), same data as holotype; 1 ex, Ciamis, Pangandaran, sample 3, S07°43.070', E108°39.634', 156 m, 22-IV-2012; 4 exx, ARC2693 (EMBL # LM655949), ARC2694 (EMBL # LM655950), ARC2695 (EMBL # LM655951), Garut, Pameungpeuk, Leuweung Sancang, sample 2, S07°43.807', E107°53.700', 74 m, 24-IV-2012.


W-Java Prov. (Leuweung Sancang, Pangandaran). Elevation: 74-157 m.


This epithet is based on the Latin adjective foveatus (pitted) and refers to its sculpture.


Trigonopterus foveatus  Riedel, sp. n. was coded as " Trigonopterus  sp. 375".