Trigonopterus porcatus 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 : 55-56

Taxon classification Animalia Coleoptera Curculionidae

59. Trigonopterus porcatus Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 59a). Length 2.53 mm. Color of legs and head ferruginous, remainder black. 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 somewhat irregular submedian ridges; epistome with indistinct, transverse, subangulate ridge. Pronotum anterolaterally angularly projecting; with distinct subapical constriction; disk coarsely rugose-punctate, punctures each with one suberect seta; interspaces microreticulate; with median ridge. Elytra with striae deeply impressed, each with row of suberect bristles; intervals carinate, nude; interval 7 swollen subapically, laterally weakly projecting; sutural interval at apex slightly protruding. Femora edentate. Metafemur subapically with stridulatory patch and transverse row of denticles. Abdominal ventrite 5 flat, sparsely punctate, apically sparsely setose. Penis (Fig. 59b) asymmetrical, appearing twisted; in profile moderately curved; apex with broad, spatulate extension; transfer apparatus flagelliform, ca. as long as body; apodemes 2.0 × as long as body; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.15-2.63 mm. Female rostrum dorsally with pairs of lateral and submedian furrows; epistome simple.

Material examined.

Holotype (MZB): ARC2699 (EMBL # LM655955), West Java, Garut, Cikajang, Mt. Payung, sample 1, S07°25.345', E107°48.825', 1085 m, 26 -IV-2012. Paratypes (MZB, SMNK, ZSM): W-Java Prov., Garut, Cikajang, Mt. Payung: 10 exx, ARC2700 (EMBL # LM655956), ARC2701 (EMBL # LM655957), ARC3638 (EMBL # LM656060), same data as holotype; 7 exx, ARC2711 (EMBL # LM655967), sample 2, S07°25.268', E107°48.492', 1250 m, 26-IV-2012; 8 exx, ARC2714 (EMBL # LM655970), sample 3, S07°25.320', E107°48.259', 1560 m, 26-IV-2012; 1 ex, ARC3594 (EMBL # LM656025), Sumedang, Sukajadi, Mt. Cakrabuana, sample 5, S07°01.804', E108°08.044', 1563 m, 20-IV-2012.

Distribution.

W-Java Prov. (Mt. Payung, Mt. Cakrabuana). Elevation: 1085-1563 m.

Etymology.

This epithet is based on the Latin porca (ridge between two furrows) and to be treated as an adjective. It refers to the elytral sculpture.

Notes.

Trigonopterus porcatus Riedel, sp. n. was coded as " Trigonopterus sp. 370".