Trigonopterus rosichoni
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Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus rosichoni Narakusumo & Riedel, 2021 sp. nov. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype. Male (Fig. 19a). Length 2.40 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 broad median costa and pair of submedian ridges; intervening furrows with sparse rows of subrecumbent setae; apical 1/3 subglabrous, with few punctures and with sparse suberect setae. Pronotum with disk densely punctate with coarse punctures; median line impunctate; interspaces between punctures subglabrous; laterally in basal 1/3 impunctate. Elytra with striae marked by rows of punctures and very fine hairlines; basal margin bordered by transverse row of punctures; intervals flat, with few interspersed punctures. Femora edentate; anteroventral ridges simple. Metafemur with dorsoposterior edge weakly crenate; subapically with stridulatory patch. Abdominal ventrites 1–2 concave, subglabrous; behind metacoxa with angular knob; ventrite 5 with deep subglabrous pit, subparallel lateral ridges and apical margin microreticulate, punctulate. Penis (Fig. 19b) with sides of body subparallel; apex with median angulate extension, with sparse setae; apodemes 2.6× as long as body of penis; transfer apparatus flagelliform; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.28–2.80 mm. Female rostrum dorsally smooth and flat. Female abdominal ventrite 5 flat, subglabrous, with sparse minute punctures.
Material examined
Holotype (MZB, Cole.173.072): MZB0094 (GenBank OK481923), Indonesia, C-Sulawesi, Toli-Toli, Gn. Dako, 01°03.782N, 120°53.934'E to 01°02.977N, 120°55.001'E, 1250–1750 m, 11-VII-2018, beaten. Paratypes (MZB, SMNK): Indonesia, C-Sulawesi, Toli-Toli, Gn. Dako: 6 exx, MZB0193 (GenBank OK481857), MZB0194 (GenBank OK481856), MZB0249 (GenBank OK481804), same data as holotype; 3 exx, MZB0092 (GenBank OK481925), MZB0056 (GenBank OK481959), MZB0252 (GenBank OK481801), 01°03.181N, 120°54.607'E to 01°02.977N, 120°55.001'E, 1400–1750 m, 07-VII-2018, beaten; 2 exx, MZB0253 (GenBank OK481800), MZB0255 (GenBank OK481798), 01°02.977'N, 120°55.010'E to 01°03.782N, 120°53.934'E, 970–1750 m, 11-VII-2018, beaten.
Distribution
C-Sulawesi Prov. (Mt Dako). Elevation ca. 1400–1750 m.
Biology
On foliage in montane forest.
Etymology
This species is named in honor of Rosichon Ubaidillah, curator and researcher of Hymenoptera at MZB. An invariable genitive.
Notes
Trigonopterus rosichoni sp. nov. was coded as “Trigonopterus sp. 1193”. It belongs to the T. satyrus-group and is closely related to T. ancora sp. nov. from which it differs by the shape of the transfer apparatus and 9.4–9.6% p-distance of its cox1 sequence.
Original Description
- Narakusumo, R; Riedel, A; 2021: Twenty-eight new species of Trigonopterus Fauvel (Coleoptera, Curculionidae) from Central Sulawesi ZooKeys, 1065: 29-79. doi
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