Trigonopterus klabatensis Riedel

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

38. Trigonopterus klabatensis Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 38a). Length 3.30 mm. Color of antennae ferruginous; legs dark ferruginous; remainder black. Body subovate; in dorsal aspect with weak constriction between pronotum and elytron; in profile dorsally weakly convex. Rostrum dorsally with median carina and pair of submedian carinae, intervening furrows each with sparse row of suberect piliform scales; epistome indistinct. Pronotum with indistinct lateral edges weakly converging to subapical constriction; disk densely punctate, punctures anteriorly and laterally larger, bearing each one suberect transparent scale; median line impunctate. Elytra irregularly punctate; striae marked by hairlines; subapically punctures bearing short suberect transparent scale. Femora with anteroventral ridge ending with denticle, in meso- and metafemur crenate; anterior surface densely coarsely punctate, each puncture with suberect scale. Metafemur with dorsoposterior edge denticulate; subapically with stridulatory patch. Abdominal ventrites 1-2 concave, subglabrous, laterally with flange; ventrite 5 flat, punctate, with sparse suberect scales. Penis (Fig. 38b) with sides of body subparallel, in apical 1/2 weakly widening to rounded apex; apodemes 2.6 × as long as body; transfer apparatus flagelliform, slightly longer than body of penis; ductus ejaculatorius basally swollen, sclerotized, without bulbus.

Material examined.

Holotype (MZB): ARC2787 (GenBank # MK260241), N-Sulawesi Prov., Airmadidi, Gn. Klabat, 01°26.635'N 125°00.823'E, 1031 m, sifted, 16-V-2012.

Distribution.

N-Sulawesi Prov. (Mt Klabat). Elevation ca. 1030 m.

Biology.

In leaf litter of montane forest.

Etymology.

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

Notes.

Trigonopterus klabatensis Riedel, sp. n. was coded as " Trigonopterus sp. 383".