Trigonopterus suturatus
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Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus suturatus Riedel sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype, male (Fig. 94a). Length 2.58 mm. Color of antennae light ferruginous; legs dark ferruginous; head and elytra dark ferruginous to black; remainder black. Body elongate; in dorsal aspect with constriction between pronotum and elytron; in profile dorsally flat. Rostrum dorsally with median carina and pair of distinct submedian ridges; intervening furrows with sparse, piliform scales; epistome indistinct. Pronotum elongate; disk densely punctate with coarse punctures, reticulate interspaces glabrous; with median costa, in basal 1/2 bordered by shallow submedian depressions; with sparse yellowish scales, anteriorly piliform and erect, sublaterally broader and recumbent. Elytra with striae 1–4 deeply entrenched, laterally with partly irregular punctures; dorsally intervals costate; sutural interval anteriorly markedly swollen, forming transverse costa to humeri; dorsally with sparse, almond-shaped, yellow, recumbent scales. Femora dentate, with acute tooth; anterior surface subglabrous, sparsely punctate, with few scattered recumbent piliform scales. Metafemur dorsally with sparse, almond-shaped, yellow scales; subapically with stridulatory patch. Tibia with dorsal edge subbasally denticulate. Abdominal ventrites 1–2 subglabrous, laterally with sparse coarse punctures; ventrite 5 flat, subglabrous, laterally with sparse coarse punctures. Penis (Fig. 94b) with sides of body subparallel, apex rounded, without setae; apodemes 2.6 × as long as body of penis; transfer apparatus flagelliform, 2.3 × longer than body of penis; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.58–2.80 mm. Female rostrum slender.
Material examined
Holotype (MZB): ARC3211 (EMBL # LN884976), S-Sulawesi Prov., Mangkutana, 02°20.306'S 120°46.792'E, 909 m, sifted, 14-V-2013. Paratypes (MZB, SMNK): S-Sulawesi Prov.: 2 exx, ARC3212 (GenBank # MK260462), ARC3232 (GenBank # MK260463), same data as holotype; 1 ex, ARC3141 (GenBank # MK260461), Pendolo, Boe, 02°05.446'S 120°38.519'E, 915 m, 15-V-2013.
Distribution
S-Sulawesi Prov. (Mangkutana), C-Sulawesi Prov. (Pendolo). Elevation ca. 910–915 m.
Biology
In leaf litter of montane forest.
Etymology
This epithet is a Latinized adjective based on the Latin noun sutura (seam) and suffix -atus (pertaining to) and refers to the swollen sutural interval of the elytra.
Notes
Trigonopterus suturatus Riedel, sp. n. was coded as “Trigonopterus sp. 488”.
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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