Trigonopterus pompangeensis
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Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus pompangeensis Narakusumo & Riedel, 2021 sp. nov. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype. Male (Fig. 17a). Length 2.16 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 median costa and pair of somewhat irregular submedian ridges; epistome indistinct, subglabrous, apically with sparse suberect setae. Pronotum with ovate punctures of transverse orientation; interspaces subglabrous. Elytra with striae marked by rows of small punctures; sutural interval with additional row, other intervals subglabrous, with sparse minute punctures; basal margin with transverse row of denser punctures and wrinkles; stria 7 and 8 basally with somewhat coarser punctures. Femora dentate with small tooth; anterior surface densely punctate-rugose, microreticulate, each puncture with short recumbent seta. Meso- and metafemur with anteroventral ridge hardly crenate. Metafemur subapically with stridulatory patch. Abdominal ventrite 1–2 flat, subglabrous, with sparse punctures; ventrite 5 flat, densely punctate. Penis (Fig. 17b) with sides of body subparallel in basal half, converging in apical half, apex rounded, with few setae; apodemes 2.7× as long as body of penis; transfer apparatus spiniform, pointing apicad, held by pair of M-shaped sclerite; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.11–2.43. Female rostrum slender, dorsally subglabrous, with submedian row of punctures and sublateral furrows.
Material examined
Holotype (MZB, Cole.173.070): MZB0145 (GenBank OK481892), Indonesia, C-Sulawesi, Tojo Una-Una, Matako, Gn. Pompangeo, 01°35.603'S, 120°55.437'E to 01°35.406'S, 120°55.547'E, 1800 m, 29-II-2020, beaten. Paratypes (MZB, SMNK): Indonesia, C-Sulawesi, Tojo Una-Una, Matako, Gn. Pompangeo: 2 exx, MZB0239 (GenBank OK481814), MZB0240 (GenBank OK481813), same data as holotype; 1 ex, MZB0133 (GenBank OK481901), 01°35.235'S, 120°55.679'E to 01°35.258'S, 120°55.588'E, 1900 m, 27-II-2020, sifted; 3 exx, MZB0147 (GenBank OK481890), MZB0164 (GenBank OK481874), MZB0229 (GenBank OK481824), 01°35.197'S, 120°55.658'E to 01°35.154'S, 120°55.507'E, 1900 m, 28-II-2020, beaten; 1 ex, MZB0152 (GenBank OK481886), 01°35.359'S, 120°55.643'E to 01°35.581'S, 120°55.385'E, 1800 m, 29-II-2020, beaten; 1 ex, MZB0144 (GenBank OK481893), 01°35.235'S, 120°55.679'E to 01°35.258'S, 120°55.588'E, 1900 m, 26–27-II-2020, beaten; 4 exx, MZB0146 (GenBank OK481891), MZB0236 (GenBank OK481817), MZB0237 (GenBank OK481816), MZB0238 (GenBank OK481815), 01°35.197'S, 120°55.658'E to 01°35.127'S, 120°55.622'E, 2000 m, 01-III-2020, beaten.
Distribution
C-Sulawesi Prov. (Mt Pompangeo). Elevation 1800–2000 m.
Biology
On foliage in montane forest.
Etymology
This epithet is a Latinized adjective based on Mt Pompangeo.
Notes
Trigonopterus pompangeensis sp. nov. was coded as “Trigonopterus sp. 1198”. This species belongs to the T. ovalipunctatus-group. It is closely related to T. ovalipunctatus Riedel, but differs by a more densely punctate pronotum, the apically extended and converging penis, and 7.2–9.7% cox1 p-distance.
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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