Trigonopterus idefix Riedel

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

30. Trigonopterus idefix Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 30a). Length 1.60 mm. Color of antennae yellowish; legs and rostrum dark ferruginous; remainder black. Body subovate; in dorsal aspect with weak constriction, in profile with distinct constriction between pronotum and elytron. Rostrum long; subapically slightly widened; dorsally with median costa and pair of sublateral ridges; intervening furrows with rows of punctures containing each one indistinct seta; epistome simple, subglabrous. Pronotum with disk densely, coarsely punctate; interspaces between punctures reticulate, subglabrous. Elytra with striae deeply impressed, intervals subglabrous, costate; punctures each with short, suberect seta; sutural interval basally curving laterad. Legs long. Profemur with anteroventral ridge simple; meso- and metafemur with indistinct denticle at middle; anterior surface of femora coriaceous, punctate. Metafemur subapically with stridulatory patch. Abdominal ventrite 1 dull, microreticulate, weakly concave, with coarse punctures; ventrite 5 subglabrous, weakly microreticulate, with shallow concavity. Penis (Fig. 30b) with sides subparallel in basal 1/2, towards apex converging in sinuate line; apex with long, pointed, downwardly curved extension, laterally with sparse setae; basal orifice with well-sclerotized ventral rim; apodemes 1.6 × as long as body of penis; transfer apparatus dentiform, directed basad in repose; ductus ejaculatorius with indistinct bulbus. Intraspecific variation. Length 1.60-1.88 mm. Female rostrum in apical 1/2 subglabrous, with lateral and sublateral rows of punctures. Female abdominal ventrite 5 flat, sparsely punctate.

Material examined.

Holotype (MZB): ARC2842 (GenBank # MK260327), S-Sulawesi Prov., Pc. Palopo, Gn. Sampuna, 02°56.539'S 120°05.320'E, 1038 m, sifted, 29-V-2012. Paratypes (MZB, SMNK): S-Sulawesi Prov.: 5 exx, ARC3087 (GenBank # MK260329), ARC3088 (GenBank # MK260330), ARC3089 (GenBank # MK260331), Pc. Palopo, Gn. Sampuna, 02°56.545'S 120°05.595'E, 1101 m, sifted, 02-V-2013; 28 exx, ARC3016 (GenBank # MK260326), ARC6022 (GenBank # MK260332), ARC6023 (GenBank # MK260328),Tanah Toraja, Rantepao, Gn. Karre (= Gn. Wokim), 02°59.021'S 120°02.523'E, 1456 m, sifted, 06-V-2013.

Distribution.

S-Sulawesi Prov. (Tanah Toraja, Pc. Palopo). Elevation 1040-1460 m.

Biology.

In leaf litter of montane forest.

Etymology.

This epithet is based on a character of the French Asterix comics. It is a noun in apposition.

Notes.

Trigonopterus idefix Riedel, sp. n. was coded as " Trigonopterus sp. 406".