Trigonopterus moatensis Riedel

Riedel, Alexander & Narakusumo, Raden Pramesa, 2019, One hundred and three new species of Trigonopterus weevils from Sulawesi, ZooKeys 828, pp. 1-153 : 1

52. Trigonopterus moatensis Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 52a). Length 2.48 mm. Color of antennae ferruginous; legs dark ferruginous; remainder black. Body subovate; in profile dorsally convex. Rostrum dorsally with median costa and pair of submedian costae, in apical 1/2 continued as fine ridges; with sparse rows of suberect piliform scales; epistome sparsely punctate, with minute median denticle. Pronotum with disk densely punctate; median line sparsely punctate; interspaces between punctures subglabrous, subequal to punctures´ diameter. Elytra with striae marked by rows of small punctures and hairlines except stria 1 without hairline; along basal margin with transverse row of denser punctures; stria 8 along humerus with larger punctures; intervals flat, subglabrous, with few interspersed punctures. Femora edentate. Metafemur with dorsoposterior edge denticulate; subapically with stridulatory patch. Posterior face of metatibia in apical 1/2 with dense long setae, subapically forming inwards curved brush. Abdominal ventrites 1-2 concave, subglabrous; ventrite 5 concave, subglabrous. Penis (Fig. 52b) with sides of body weakly constricted near middle; apex subangulate, with sparse setae; apodemes 2.2 × as long as body; transfer apparatus complex; ductus ejaculatorius with indistinct bulbus. Intraspecific variation. Length 2.40-2.68 mm.

Material examined.

Holotype (MZB): ARC2908 (GenBank # MK260238), N-Sulawesi Prov., Kotamobagu, Modoinding, Lake Moat area, 00°42.862'N 124°28.356'E, 1024 m, beaten, 19-V-2012. Paratypes (MZB, SMNK): 4 exx, ARC2907 (GenBank # MK260240), ARC2909 (GenBank # MK260239), same data as holotype.

Distribution.

N-Sulawesi Prov. (Lake Moat). Elevation ca. 960 m.

Biology.

On foliage in montane forests.

Etymology.

This epithet refers to Lake Moat which is close to the type locality. A variable Latinized adjective.

Notes.

Trigonopterus moatensis Riedel, sp. n. was coded as " Trigonopterus sp. 382".