Trigonopterus scitulus
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Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus scitulus Riedel sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype, male (Fig. 87a). Length 2.26 mm. Color of antennae, tibiae, tarsi and rostrum ferruginous; femora dark ferruginous to black; remainder black. Body subovate; in profile dorsally convex, with distinct constriction between pronotum and elytron. Rostrum dorsally with median subglabrous carina, pair of submedian ridges indistinct; with sparse rows of erect piliform yellow scales; epistome short, subglabrous. Pronotum subglabrous, at middle, subapically and laterally with sparse coarse punctures; subapically with sparse yellowish narrow suberect scales. Elytra subglabrous, with sparse minute punctures, striae obsolete; with sparse recumbent yellowish scales near base, on sutural interval and subapically. Femora edentate; anteroventral ridge distinct, simple. Metafemur with dorsoposterior ridge denticulate, subapically without stridulatory patch, anterior surface coarsely rugose-punctate, each puncture with narrow recumbent scale. Abdominal ventrites 1–2, fused, weakly concave, subglabrous; ventrite 5 with distinct depression, sublaterally with sparse erect piliform scales. Penis (Fig. 87b) with sides of body subparallel, apex subangulate, with sparse short setae; apodemes 2.1 × as long as body of penis; transfer apparatus simple, spiniform; ductus ejaculatorius with indistinct bulbus. Intraspecific variation. Length 2.06–2.26 mm. Female unknown.
Material examined
Holotype (MZB): ARC2788 (GenBank # MK260393), N-Sulawesi Prov., Airmadidi, Gn. Klabat, 01°26.635'N 125°00.823'E, 1031 m, sifted, 16-V-2012. Paratype (SMNK): 1 ex, ARC2802 (EMBL # LT603141), N-Sulawesi, Airmadidi, Gn. Klabat, 01°26.619'N 125°00.805'E, 1018 m, sifted, 17-V-2012.
Distribution
N-Sulawesi Prov. (Gn. Klabat). Elevation ca. 1020–1030 m.
Biology
In leaf litter of montane forest.
Etymology
This epithet is the Latin adjective scitulus, -a, -um (neat).
Notes
Trigonopterus scitulus Riedel, sp. n. was coded as “Trigonopterus sp. 422”.
Original Description
- Riedel, A; Narakusumo, R; 2019: One hundred and three new species of Trigonopterus weevils from Sulawesi ZooKeys, (828): 1-153. doi
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