Trigonopterus palawanensis 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: 49-50

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Trigonopterus palawanensis Riedel

sp. n.

Taxon classification Animalia Coleoptera Curculionidae

52. Trigonopterus palawanensis Riedel  sp. n.

Diagnostic description.

Holotype, male (Fig. 52a). Length 2.21 mm. Color of antennae and tarsi light ferruginous; remainder dark ferruginous to black. Body subovate; in dorsal aspect with marked constriction between pronotum and elytron; with distinct constriction in profile. Rostrum with median and pair of submedian ridges, most prominent at level of antennal insertion, anteriorly rather indistinct; with sparse rows of suberect scales; epistome at middle with dorsoposteriad directed acute denticle. Pronotum coarsely punctate-reticulate, each puncture with one clavate suberect scale; with indistinct subapical constriction. Elytra with striae deeply impressed, each with row of suberect clavate scales; intervals subcarinate, microreticulate. Metafemur subapically with stridulatory patch. Abdominal ventrite 5 flat, sparsely covered with small clavate scales. Penis (Fig. 52b) with sides of body in basal half subparallel, in apical half converging to subtruncate apex; ostium with large trapeziform sclerite; apodemes 1.8 × as long as body; transfer apparatus with subovate central fig and coiled spiniform transfer process; ductus ejaculatorius with distinct bulbus. Intraspecific variation. Length 2.13-2.21 mm. Female rostrum in basal half with median and pair of submedian ridges less prominent, but distinct; in apical half rugose-punctate; sparse scales recumbent; epistome simple.

Material examined.

Holotype (SMNK): ARC1440 (EMBL # LM655554), PHILIPPINES, Palawan, Puerto Princessa region, Sabang, Mt. Bloomfield, N10°11.62', E118°52.35', 500-700 m, 10-XII-2009. Paratypes (SMNK): 2 exx, ARC1441 (EMBL # LM655555), ARC1442 (PCR failed), same data as holotype.


Palawan (Mt. Bloomfield). Elevation: ca. 500-700 m.


This epithet is based on the type locality, the island of Palawan.


Trigonopterus palawanensis  Riedel, sp. n. was coded as " Trigonopterus  sp. 344".