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Holotype, male (Fig. 43a). Length 2.68 mm. Color of antennae and legs ferruginous; remainder black. Body subrhomboid; in dorsal aspect with constriction between pronotum and elytron; in profile dorsally convex. Rostrum dorsally with median and pair of submedian ridges; intervening furrows with rows of suberect yellowish scales; epistome short, subglabrous, posteriorly with transverse ridge. Pronotum with lateral edges subparallel, weakly converging, rounded to subapical constriction; disk densely punctate, forming broad ridge with impunctate median line; anteriorly some punctures bearing long, slender scales. Elytra with humeri laterally markedly protruding; striae marked by small punctures; stria 1 more distinctly impressed; intervals subglabrous, with sparse recumbent yellowish scales; humeri densely irregularly punctate; along base transversely impressed, with punctures larger, scales denser and wider. Femora edentate; anteroventral ridge distinct, simple. Metafemur with dorsoposterior edge denticulate; subapically with stridulatory patch. Metatibia in basal 1/2 with dorsal edge denticulate; in apical 1/2 slender, posteroventrally densely clothed with short yellowish setae. Abdominal ventrites 1–2 concave, subglabrous; ventrite 5 flat, sparsely punctate. Penis (Fig. 43b) with sides of body subparallel; apex weakly rounded, with setae; apodemes 2.5 × as long as body of penis; transfer apparatus complex; ductus ejaculatorius with indistinct bulbus. Intraspecific variation. Length 2.14–2.68 mm. Female body more slender, subovate, humeri not protruding; female rostrum subglabrous with submedian row of punctures and sublateral pair of furrows; epistome simple.
Holotype (MZB): ARC2773 (GenBank # MK260383), N-Sulawesi Prov., Airmadidi, Gn. Klabat, 01°26.505'N 125°00.636'E, 923 m, sifted, 16-V-2012. Paratypes (MZB, SMNK): N-Sulawesi Prov.: 5 exx, ARC2774 (GenBank # MK260382), ARC2775 (GenBank # MK260378), ARC2776 (GenBank # MK260381), same data as holotype; 3 exx, ARC2794 (GenBank # MK260380), ARC2796 (GenBank # MK260379), Airmadidi, Gn. Klabat, 01°26.430'N 125°00.622'E, 889 m, sifted, 17-V-2012; 4 exx, ARC0329 (GenBank # MK260386), ARC0330 (EMBL # HG939576), ARC0331 (GenBank # MK260385), ARC0332 (GenBank # MK260384), Bitung, Gn. Dua Saudara, 01°29.417'N 125°09.150'E, sifted, 25-VI-2006.
N-Sulawesi Prov. (Mt Klabat, Bitung). Elevation 890–920 m.
In leaf litter of montane forest.
This epithet is an adjectival combination of the Latin adjective latus, -a, -um (wide), the noun penna (wing, elytron) and the second adjectival declension ending -is, and refers to the body shape of this species.
Trigonopterus latipennis Riedel, sp. n. was coded as “Trigonopterus sp. 418”.
- Riedel, A; Narakusumo, R; 2019: One hundred and three new species of Trigonopterus weevils from Sulawesi ZooKeys, (828): 1-153. doi