Trigonopterus matakensis
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Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus matakensis Narakusumo & Riedel, 2021 sp. nov. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype. Male (Fig. 12a). Length 2.13 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, with very weak constriction between pronotum and elytron. Rostrum dorsally with median costa and with pair of irregular submedian ridges; intervening furrows with sparse rows of suberect setae, converging towards apex; epistome indistinct, subglabrous, with sparse erected 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 somewhat larger punctures. Femora dentate with small tooth; anterior surface punctate, microreticulate, each puncture with short recumbent seta. Meso- and metafemur with anteroventral ridge crenate. Metafemur subapically with stridulatory patch. Abdominal ventrites 1–2 concave, microreticulate, with sparse punctures; ventrite 5 punctate, microreticulate, with sparse setae, at middle with distinct impression. Penis (Fig. 12b) with body subparallel to rounded apex, with few short setae; apodemes 2.6× as long as body of penis; transfer apparatus spiniform, pointing apicad, held by subrotund sclerite; ductus ejaculatorius without bulbus. Intraspecific variation. Length 1.98–2.43 mm. Female rostrum smooth, subglabrous, with rows of small punctures. Female ventrite 5 flat, densely punctate, microreticulate.
Material examined
Holotype (MZB, Cole.173.065): MZB0159 (GenBank OK481879), 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: 1 ex, MZB0148 (GenBank OK481889), 01°35.215'S, 120°55.560'E to 01°35.079'S, 120°55.49'E, 1900 m, 28-II-2020, beaten; 1 ex, MZB0149 (GenBank OK481888), 01°35.603'S, 120°55.437'E to 01°35.406'S, 120°55.547'E, 1800 m, 29-II-2020, beaten; 4 exx, MZB0223 (GenBank OK481830), MZB0224 (GenBank OK481829), MZB0225 (GenBank OK481828), MZB0226 (GenBank OK481827), 01°35.359'S, 120°55.643'E to 01°35.581'S, 120°55.385'E, 1800 m, 29-II-2020, beaten; 2 exx, MZB0156 (GenBank OK481882), MZB0157 (GenBank OK481881), 01°35.359'S, 120°55.643'E to 01°35.581'S, 120°55.385'E, 1900 m, 29-II-2020, sifted; 3 exx, MZB0158 (GenBank OK481880), MZB0234 (GenBank OK481819), MZB0235 (GenBank OK481818), 01°35.235'S, 120°55.679'E to 01°35.258'S, 120°55.588'E, 1900 m, 26–27-II-2020, beaten; 2 exx, MZB0166 (GenBank OK481872), MZB0167 (GenBank OK481871), 01°35.603'S, 120°55.437'E to 01°35.406'S, 120°55.547'E, 1800 m, 29-II-2020, beaten; 5 exx, MZB0168 (GenBank OK481870), MZB0230 (GenBank OK481823), MZB0231 (GenBank OK481822), MZB0232 (GenBank OK481821), MZB0233 (GenBank OK481820), 01°35.197'S, 120°55.658'E to 01°35.154'S, 120°55.507'E, 1900 m, 28-II-2020, beaten; 10 exx, MZB0150 (GenBank OK481887), MZB0155 (GenBank OK481883), MZB0217 (GenBank OK481836), MZB0218 (GenBank OK481835), MZB0219 (GenBank OK481834), MZB0220 (GenBank OK481833), MZB0221 (GenBank OK481832), MZB0222 (GenBank OK481831), MZB0227 (GenBank OK481826), MZB0228 (GenBank OK481825), 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 and in leaf litter in montane forests.
Etymology
This epithet is a Latinized adjective based on Matako village.
Notes
Trigonopterus matakensis sp. nov. was coded as “Trigonopterus sp. 1197”. This species belongs to the T. ovalipunctatus-group. It is closely related to T. ovalipunctatus Riedel, but differs by the subrotund shape of the supporting sclerites of the transfer apparatus and a 9.6–10.3% 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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