Trigonopterus heberti Riedel

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

26. Trigonopterus heberti Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 26a). Length 2.46 mm. Color of antennae and legs ferruginous; remainder black. Body subovate; in dorsal aspect with weak constriction between pronotum and elytron, in profile dorsally convex. Rostrum dorsally with median and pair of submedian ridges; intervening furrows with sparse rows of suberect setae; epistome short, posteriorly with transverse, angulate ridge. Pronotum with median, densely punctate swelling; submedially disk with pair of broad, sparsely punctate depressions; interspaces between punctures subglabrous. Elytra with striae marked by rows of minute punctures; basal margin bordered by transverse row of deeper punctures; stria 8 along humerus with six large, coarse punctures; sutural interval with additional row, other intervals subglabrous, with few interspersed punctures; elytral apex subangulate. Femora edentate; anterior surface densely coarsely punctate, each puncture with recumbent scale. Metafemur with dorsoposterior edge denticulate, with silvery-yellowish scales upcurved; subapically with stridulatory patch. Abdominal ventrite 1 and anterior portion of ventrite 2 concave, cavernous, subglabrous; ventrite 2 posteriorly forming rim; ventrite 5 broadly concave, sparsely punctate. Penis (Fig. 26b) subapically with fringe of sparse setae, medially with angulate extension; dorsum with submedian brushes of setae; apodemes 1.7 × as long as body of penis; transfer apparatus with complex sclerites; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.26-2.46 mm. Female rostrum in apical 1/2 slender, subglabrous, with two submedian rows of punctures, with pair of sublateral furrows. Female abdominal ventrite 5 flat, sparsely punctate, setose.

Material examined.

Holotype (MZB): ARC2885 (GenBank # MK2 60352), N-Sulawesi Prov., Kotamobagu, Matalibaru, 00°32.445'N 124°14.185'E, 956 m, beaten, 20-V-2012. Paratypes (MZB, SMNK): N-Sulawesi Prov.: 1 ex, ARC2887 (GenBank # MK260348), same data as holotype; 3 exx, ARC2903 (GenBank # MK260349), ARC2904 (GenBank # MK260350), ARC2910 (GenBank # MK260353), Kotamobagu, Modoinding, Lake Moat area, 00°42.862'N 124°28.356'E, 1024 m, sifted, 19-V-2012; 1 ex, ARC2756 (GenBank # MK260351), Tomohon, Rurukan, Gn. Mahawu, 01°21.409'N 124°51.535'E to 01°21.370'N 124°51.676'E, 1126-1231 m, 14-V-2012.

Distribution.

N-Sulawesi Prov. (Kotamobagu, Lake Moat, Tomohon). Elevation 960-1130 m.

Biology.

On foliage in montane forests.

Etymology.

This species is named in honor of Prof. Paul DN Hebert (University of Guelph) for establishing "DNA barcoding" as a tool in taxonomic practice. An invariable genitive.

Notes.

Trigonopterus heberti Riedel, sp. n. was coded as " Trigonopterus sp. 411".