Trigonopterus dentipes 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: 23-24

publication ID

http://dx.doi.org/10.3897/zookeys.467.8206

publication LSID

lsid:zoobank.org:pub:319040F0-1D0F-4950-92BF-A2FF705517AF

persistent identifier

http://treatment.plazi.org/id/550B7704-235F-40E4-B006-49B32D239AF6

taxon LSID

lsid:zoobank.org:act:550B7704-235F-40E4-B006-49B32D239AF6

treatment provided by

ZooKeys by Pensoft

scientific name

Trigonopterus dentipes Riedel
status

sp. n.

Taxon classification Animalia Coleoptera Curculionidae

23. Trigonopterus dentipes Riedel  sp. n.

Diagnostic description.

Holotype, male (Fig. 23a). Length 3.84 mm. Color of antennae ferruginous; basal third of elytra and legs dark ferruginous; remainder black. Body in dorsal aspect with marked constriction between pronotum and elytron; in profile dorsally flat, apically convex. Rostrum with median and pair of submedian ridges; intervening furrows each with sparse row of erect piliform scales; epistome with transverse ridge forming submedian pair of small denticles. Pronotum with sides subparallel, rounded to indistinct subapical constriction; disk densely punctate, reticulate; with indistinct median ridge; with swelling in anterior half. Elytra with striae near base and apex distinct; intervals partly swollen or with coarse punctures each bearing small, suberect, cream-colored scale; transverse band at middle with indistinct striae, intervals subglabrous, sparsely punctate; apex subangulate. Anteroventral ridge of femora forming large tooth. Metafemur subapically with stridulatory patch. Dorsal edge of tibiae with subbasal angulation dentate. Abdominal ventrites 1-2 concave, subglabrous; abdominal ventrite 5 flat, coarsely punctate, with sparse erect piliform scales. Penis (Fig. 23b) with sides of body subparallel; apex bisinuate, with median notch; transfer apparatus compact, symmetrical, but slightly tilted to the left; apodemes 2.5 × as long as body; ductus ejaculatorius without bulbus. Intraspecific variation. Length 3.04-4.04 mm. Coloration of elytral base ranging from orange-ferruginous to dark ferruginous and almost black. Female rostrum with median and pair of submedian glabrous costae; epistome simple. Female elytra more slender, with lateral contour convex to apex; punctures sparser and smaller than in male; male elytra relatively broad between humeri, converging in almost straight line to apex.

Material examined.

Holotype (MZB): ARC1468 (EMBL # LM655566), West Nusa Tenggara Prov., Lombok, Tetebatu, Rinjani-trail from Orong Gerisak, sample 7, S08°29.433', E116°24.746', 1240 m, 04-IV-2010 (MZB). Paratypes (ARC, MZB, SMNK, ZSM): Lombok: 4 exx, ARC0163, N Tetebatu, 1200-1450 m, 07-XII-2004; 1 ex, ARC1461 (EMBL # LM655559), Tetebatu, Rinjani-trail from Orong Gerisak, sample 6, S08°29.577', E116°24.782', 1195 m, 04-IV-2010; 2 exx, ARC1474 (EMBL # LM655572), ARC1475 (EMBL # LM655573), Tetebatu, Rinjani-trail from Orong Gerisak, sample 5, S08°30.096', E116°25.062', 1010 m, 04-IV-2010; 1 ex, ARC2270 (EMBL # LM655724), Senaru, Rinjani-track, sample 6, S08°19.359', E116°24.070', 860 m, 23-III-2011; 4 exx, ARC2271 (EMBL # LM655725), ARC2272 (EMBL # LM655726), ARC2273 (EMBL # LM655727), Santong, Rinjani-track, sample 1, S08°20.715', E116°19.695', 830 m, 24-III-2011; 1 ex, Santong, Rinjani-track, sample 2, S08°20.813', E116°19.778', 870 m, 24-III-2011; 1 ex, ARC2283 (EMBL # LM655737), Santong, Rinjani-track, sample 3, S08°20.996', E116°20.001', 960 m, 25-III-2011; 2 exx, ARC2284 (EMBL # LM655738), Santong, Rinjani-track, sample 4, S08°21.160', E116°20.067', 1005 m, 25-III-2011.

Distribution.

West Nusa Tenggara Prov., Lombok (Santong, Senaru, Tetebatu). Elevation: 830-1240 m.

Etymology.

This epithet is based on the combination of the Latin nouns dens (tooth) and pes (foot).

Notes.

Trigonopterus dentipes  Riedel, sp. n. was coded as " Trigonopterus  sp. 322" by Tänzler et al. (2014).