Trigonopterus dakoensis
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{Narakusumo2021ZooKeys1065, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Narakusumo2021ZooKeys1065">{{Citation See also the citation download page at the journal. |
Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus dakoensis Narakusumo & Riedel, 2021 sp. nov. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype, male (Fig. 5a). Length 2.58 mm. Color of antennae and legs ferruginous; remainder black. Body broad subovate; in dorsal aspect with weak constriction between pronotum and elytron, in profile dorsally convex, with very weak constriction. Rostrum dorsally with median costa and pair of submedian ridges; intervening furrows with sparse rows of suberect narrow scales; epistome short, subglabrous, with sparse setae. Pronotum densely punctate, with coarse punctures partly arranged in longitudinal rows; median line impunctate; each puncture bearing a seta; interspaces subglabrous; laterally in basal 1/3 impunctate. Elytra with striae marked by rows of punctures; basal margin bordered by transverse row of deeper, coarse punctures; interspaces subglabrous, with few small interspersed punctures; stria 8 along humerus with six coarse punctures; elytral apex subtruncate. Femora edentate; anteroventral ridge simple; anterior surface densely coarsely punctate, each puncture with recumbent scale. Metafemur with dorsoposterior edge denticulate, with silvery scales upcurved; subapically with stridulatory patch. Metatibia subapically at base of uncus with inward directed brush of yellowish setae. Abdominal ventrites 1–2 deeply concave, medially subglabrous, laterally covered with erect scales; ventrite 5 concave, at middle impunctate, surrounded by large, coarse punctures; apically with sharp, transverse ridge, forming oblique, subglabrous surface. Penis (Fig. 5b) with body in profile with constriction, its apical half swollen; apex, ventrally with acute median process, bordered by wide lobes bearing fringe of long setae; laterally with smaller pair of simple lobes; apodemes 2.4× as long as body of penis; transfer apparatus spiniform, contained by complex accessory sclerites; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.38–2.58 mm. Female unknown.
Material examined
Holotype (MZB, Cole.173.058): MZB0064 (GenBank OK481953), Indonesia, C-Sulawesi, Toli-Toli, Gn. Dako, 01°03.512'N, 120°54.054'E, 1100 m, 13-VII-2018, sifted. Paratype (SMNK): Indonesia, C-Sulawesi, Toli-Toli, Gn. Dako: 1 ex, MZB0065 (GenBank OK481952), 01°03.531'N, 120°54.052'E, 1100 m, 13-VII-2018, sifted.
Distribution
C-Sulawesi Prov. (Mt Dako). Elevation 1030–1200 m.
Biology
In leaf litter of mountain forest.
Etymology
This epithet is a Latinized adjective based on Mt Dako.
Notes
Trigonopterus dakoensis sp. nov. was coded as “Trigonopterus sp. 1189”. The species belongs to the T. manadensis-group. It is related to T. manadensis Riedel, from which it differs by the peculiar morphology of the penis and by the longitudinal rows of coarse punctures on the pronotum. The p-distance of their cox1 sequences is 14.5–14.8%.
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
|
