Trigonopterus modoindingensis Riedel

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

53. Trigonopterus modoindingensis Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 53a). Length 2.24 mm. Color of antennae ferruginous; tarsi and tibiae dark ferruginous; remainder black. Body subovate; in dorsal aspect with distinct constriction between pronotum and elytron; in profile dorsally convex, with weak constriction between pronotum and elytron. Rostrum with lateral flanges in front of eyes; dorsally with weak median and pair of submedian ridges; intervening furrows with rows of coarse punctures and rows of thin setae; epistome short, posteriorly with transverse, angulate ridge. Pronotum with disk densely punctate with coarse punctures; interspaces between punctures subglabrous, reticulate; median line weakly costate. Elytra with striae weakly impressed, with rows of small punctures; along base weakly transversely impressed, with row of coarse punctures; stria 8 along humerus with large, coarse punctures; intervals subglabrous. Femora edentate; anteroventral ridge distinct; anterior surface coarsely punctate, each puncture with recumbent piliform scale. Metafemur with dorsoposterior edge denticulate; subapically with stridulatory patch. Abdominal ventrites 1-2 flat, subglabrous, with lateral rim; ventrite 5 with shallow impression, subglabrous, near base punctate. Penis (Fig. 53b) with sides weakly converging, apex subangulate, medially rounded, without setae; apodemes 1.6 × as long as body of penis; transfer apparatus symmetrical, complex; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.24-2.40 mm.

Material examined.

Holotype (MZB): ARC2897 (GenBank # MK260627), N-Sulawesi Prov., Kotamobagu, Modoinding, Lake Moat area, 00°42.862'N 124°28.356'E, 1024 m, sifted, 19-V-2012. Paratypes (SMNK): 3 exx, ARC2898 (GenBank # MK260626), ARC2899 (GenBank # MK260625), same data as holotype.

Distribution.

N-Sulawesi Prov. (Lake Moat). Elevation ca. 1020 m.

Biology.

In leaf litter of montane forest.

Etymology.

This epithet is a Latinized adjective based on the type locality.

Notes.

Trigonopterus modoindingensis Riedel, sp. n. was coded as " Trigonopterus sp. 580".