Trigonopterus rhombiformis
| 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{Riedel2019ZooKeys, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="Riedel2019ZooKeys">{{Citation See also the citation download page at the journal. |
Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus rhombiformis Riedel sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype, male (Fig. 77a). Length 2.93 mm. Color of antennae ferruginous; legs dark ferruginous; remainder black. Body subrhomboid; in dorsal aspect humeri projecting, with weak constriction between pronotum and elytron; in profile dorsally convex. Rostrum dorsally in basal 1/2 with median and pair of submedian ridges, intervening furrows and anteriorly punctate, with sparse suberect elongate scales; epistome posteriorly with transverse ridge. Pronotum with lateral edges weakly converging, before apex rounded to subapical constriction; disk punctate, forming broad ridge with impunctate median line; in basal 1/2 with pair of subglabrous patches. Elytra with striae marked by weakly impressed lines and rows of fine punctures; intervals with interspersed punctures; along basal margin and swollen humeri with denser, larger punctures. Femora edentate. Metafemur with dorsoposterior edge denticulate; subapically with stridulatory patch. Metatibia in basal 1/3 slightly widened, dorsal edge denticulate. Abdominal ventrites 1–2 concave, subglabrous, with sparse erect subclavate scales; ventrite 5 almost flat, weakly concave, subglabrous. Penis (Fig. 77b) with sides of body subparallel; apex rounded, with sparse setae; apodemes 2.4 × as long as body of penis; transfer apparatus complex, anchor-shaped; ductus ejaculatorius with distinct bulbus.
Material examined
Holotype (MZB): ARC2795 (GenBank # MK260256), N-Sulawesi Prov., Airmadidi, Gn. Klabat, 01°26.430'N 125°00.622'E, 889 m, sifted, 17-V-2012.
Distribution
N-Sulawesi Prov. (Mt Klabat). Elevation ca. 890 m.
Biology
In leaf litter of montane forest.
Etymology
This epithet is a combination of the Latin nouns rhombus (rhomb), forma (shape) and the 2nd adjectival declension ending -is, and refers to the body shape of this species. A variable adjective.
Notes
Trigonopterus rhombiformis Riedel, sp. n. was coded as “Trigonopterus sp. 387”.
Original Description
- Riedel, A; Narakusumo, R; 2019: One hundred and three new species of Trigonopterus weevils from Sulawesi ZooKeys, (828): 1-153. doi
Images
|
