Trigonopterus hoppla
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Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus hoppla Narakusumo & Riedel, 2021 sp. nov. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype. Male (Fig. 9a). Length 2.75 mm. Color of antennae and legs ferruginous; elytra dark ferruginous, almost black; remainder black. Body subovate; in dorsal aspect and in profile with weak constriction between pronotum and elytron. Rostrum dorsally with median costa and pair of submedian ridges; intervening furrows with rows of coarse punctures, each puncture containing one subrecumbent seta; epistome indistinct. Pronotum with disk densely punctate-reticulate with coarse punctures. Elytra with striae deeply impressed; intervals costate, each with one row of punctures. Profemur with anteroventral ridge simple. Meso- and metafemur with anteroventral ridge crenate; anterior surface of femora coarsely punctate, each puncture with narrow recumbent scale. Metafemur with dorsoposterior edge indistinct; subapically with stridulatory patch. Metatibia ventrally with few long, stiff setae. Meso- and metaventrite with sparse plumose scales. Abdominal ventrites 1–2 concave, markedly microreticulate, with coarse punctures and sparse plumose scales; ventrite 5 flat, with shallow impression, densely punctate, microreticulate. Penis (Fig. 9b) with sides of body converging to pointed apex; ostium with complex sclerites; apodemes 2.4× as long as body of penis; transfer apparatus spiniform, without supporting sclerites; ductus ejaculatorius with indistinct bulbus. Intraspecific variation. Length 2.69–2.75 mm. Sculpture of paratype much less distinct; moderately to sparsely punctate, elytral striae weakly impressed.
Material examined
Holotype (MZB, Cole.173.062): MZB0201 (GenBank OK481850), Indonesia, C-Sulawesi, Toli-Toli, Gn. Dako, 01°02.977'N, 120°55.009'E to 01°03.210'N, 120°55.297'E, 1700–1800 m, 08–10-VII-2018, beaten. Paratype (SMNK): Indonesia, C-Sulawesi, Toli-Toli, Gn. Dako: 1 ex, MZB0277 (GenBank OK481779), 01°03.412'N, 120°54.126'E to 01°03.241'N, 120°54.328'E, 1200–1300 m, 07-VII-2018.
Distribution
C-Sulawesi Prov. (Mt Dako). Elevation 1300–1700 m.
Biology
On foliage in montane forest.
Etymology
This epithet is based on the German word “Hoppla”, an exclamation of surprise, comparable to the English “whoops”. It is to be treated as a noun in apposition.
Notes
Trigonopterus hoppla sp. nov. was coded as “Trigonopterus sp. 1232”. This species belongs to the T. tatorensis-group. It is closely related to T. daun sp. nov., from which it can be distinguished by the pointed apex of the penis and a cox1 p-distance of 7.8%. The marked difference in sculpture between holotype and the single paratype is remarkable, and would usually indicate a separate species. However, genital morphology and cox1 sequence of both specimens are almost identical, so either the coarse sculpture of the holotype, or the smooth sculpture of the paratype may be an aberration. Additional specimens are needed to clarify this matter.
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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