Trigonopterus discoidalis
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Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus discoidalis Riedel sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype, male (Fig. 23a). Length 2.20 mm. Color black; legs ferruginous, antenna light ferruginous. Body subglobose; in dorsal aspect with weak constriction between pronotum and elytron; in profile almost evenly convex. Rostrum with pair of sublateral furrows and pair of submedian row of punctures, each containing row of mesally directed setae; epistome simple. Pronotum with large disk and distinct lateral edges; moderately densely punctate with small setiferous punctures. Elytra converging to subangulate apex; striae distinct, marked by small punctures; intervals subglabrous, with row of minute punctures; some punctures with one minute recumbent seta. Metafemur with weakly denticulate dorsoposterior edge; subapically with stridulatory patch. Abdominal ventrites 1–2 deeply excavated. Aedeagus (Fig. 23b) with body flattened, sides subparallel, apex subangulate; apodemes ca. 3 X as long as body; transfer-apparatus spiniform; ductus ejaculatorius, without bulbus. Intraspecific variation. Length 1.68–2.43 mm. Female rostrum more slender than in males, dorsally punctures smaller.
Material examined
Holotype (SMNK): ARC1175 (EMBL # HE615803), PAPUA NEW GUINEA, Morobe Prov., Huon peninsula, Mindik, S06°27.311', E147°24.073', 1570 m, 10-X-2009. Paratypes (ARC, NAIC, SMNK, ZSM): Morobe Prov., Huon peninsula, Mindik: 5 exx, same data as holotype; 12 exx, ARC1179 (EMBL # HE615807), ARC1180 (EMBL # HE615808), S06°27.221', E147°24.185', 1670 m, 10-X-2009; 5 exx, 1450 m, 26-IV-1998; 1 ex, 1400–1550 m, 27-IV-1998.
Distribution
Morobe Prov. (Mindik). Elevation: 1450–1670 m.
Biology
Sifted from leaf litter in montane forest.
Etymology
This epithet is based on the Latin adjective discoidalis (shaped like a disk) and refers to the species´ outline when viewed from above.
Notes
Trigonopterus discoidalis Riedel, sp. n. was coded as “Trigonopterus sp. 88” by Tänzler et al. (2012)[1].
Original Description
- Riedel, A; Sagata, K; Surbakti, S; Rene Tänzler, ; Michael Balke, ; 2013: One hundred and one new species of Trigonopterus weevils from New Guinea ZooKeys, 280: 1-150. doi
Other References
- ↑ Tänzler R, Sagata K, Surbakti S, Balke M, Riedel A (2012) DNA barcoding for community ecology - how to tackle a hyperdiverse, mostly undescribed Melanesian fauna. PLoS ONE 7 (1): e28832. doi: 10.1371/journal.pone.0028832
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