Trigonopterus ancora
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Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus ancora Narakusumo & Riedel, 2021 sp. nov. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype, male (Fig. 2a). Length 2.97 mm. Color of antennae ferruginous; legs dark 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 recumbent setae; apical 1/3 subglabrous, with few punctures and with sparse setae. Pronotum with disk densely punctate with coarse punctures except along impunctate midline; interspaces between punctures subglabrous, subequal to or smaller than punctures´ diameter. Elytra with striae marked by punctures and fine hairlines; basal margin bordered by transverse row; intervals flat, with few interspersed punctures. Femora edentate; anteroventral ridges simple. Metafemur dorsally with sparse, recumbent, silvery scales; dorsoposterior edge crenate; subapically with stridulatory patch. Metatibia in apical 1/2 with fringe of yellow setae. Abdominal ventrites 1–2 concave, subglabrous; sublaterally sparsely punctate, with sparse setae; ventrite 5 with deeply concave impression of subquadrate outline; lateral ridges and subapically densely punctate, sparsely setose. Penis (Fig. 2b) with sides of body subparallel; apex subtruncate, with median angulate extension, with sparse setae; ventrolaterally at middle with pair of knobs; apodemes 1.8× as long as body of penis; transfer apparatus spiniform, directed basad in repose, attached to anchor-shaped supporting sclerite; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.28–2.97 mm. Female rostrum dorsally flattened, smooth, with sublateral furrows and submedian rows of small punctures. Female abdominal ventrite 5 flat, subglabrous, laterally with sparse punctures.
Material examined
Holotype (MZB, Cole.173.054): MZB0053 (GenBank OK481962), Indonesia, C-Sulawesi, Toli-Toli, Gn. Dako, 01°03.412'N, 120°54.126'E to 01°03.241'N, 120°54.328'E, 1200–1300 m, 07-VII-2018, beaten. Paratypes (MZB, SMNK): Indonesia, C-Sulawesi, Toli-Toli, Gn. Dako: 1 ex, MZB0251 (GenBank OK481802), same data as holotype; 24 exx, MZB0054 (GenBank OK481961), MZB0258 (GenBank OK481795), 01°03.782N, 120°53.934'E to 01°03.574'N, 120°54.032'E, 970–1100 m, 05–06-VII-2018, beaten; 2 exx, 01°03.782'N, 120°53.934'E to 01°03.967N, 120°53.692'E, 970–1000 m, 05-VII-2018, beaten; 4 exx, MZB0247 (GenBank OK481806), 01°03.782N, 120°53.934'E, 970 m, 07-VII-2018, beaten; 5 exx, MZB0241 (GenBank OK481812), MZB0242 (GenBank OK481811), MZB0243 (GenBank OK481810), MZB0244 (GenBank OK481809), MZB0245 (GenBank OK481808), 01°03.782N, 120°53.934'E to 01°03.574N, 120°54.032'E, 970–1140 m, 06-VII-2018, beaten; 1 ex, MZB0057 (GenBank OK481958), 01°03.512'N, 120°54.054'E, 1100–1200 m, 13-VII-2018, sifted; 3 exx, MZB0250 (GenBank OK481803), MZB0256 (GenBank OK481797), MZB0257 (GenBank OK481796), 01°03.512'N, 120°54.054'E, 1100–1200 m, 06-VII-2018, beaten; 3 exx, same as holotype; 1 ex, MZB0248 (GenBank OK481805), 01°03.697'N, 120°53.991'E, 1030 m, 06-VII-2018, sifted; 1 ex, MZB0246 (GenBank OK481807), 01°03.574'N, 120°54.032'E to 01°03.181'N, 120°54.607'E, 1100–1400 m, 07-VII-2018, beaten; 4 exx, 01°03.241'N, 120°53.328'E to 01°03.181'N, 120°54.607'E, 1300–1400 m, 07-VII-2018, beaten; 1 ex, 01°03.014'N, 120°54.607'E to 01°02.977'N, 120°55.009'E, 1400–1750 m, 07-VII-2018, beaten.
Distribution
C-Sulawesi Prov. (Mt Dako). Elevation 970–1400 m.
Biology
On foliage and in leaf litter in montane forests.
Etymology
This epithet is the Latin noun ancora (anchor) in apposition and refers to the sclerite in the male transfer apparatus.
Notes
Trigonopterus ancora sp. nov. was coded as “Trigonopterus sp. 1114” (Narakusumo et al. 2020[1]). The species belongs to the T. satyrus-group and is closely related to T. rosichoni 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
Images
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Other References
- ↑ Narakusumo R, Riedel A, Pons J (2020) Mitochondrial genomes of twelve species of hyperdiverse Trigonopterus weevils. PeerJ 8: e10017. https://doi.org/10.7717/peerj.10017
