Trigonopterus rhomboidalis
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Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus rhomboidalis Riedel sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype, male (Fig. 70a). Length 2.98 mm. Color orange-ferruginous, head and pronotum black. Body subrhomboid; almost without constriction between pronotum and elytron; in profile evenly convex. Rostrum with weak median and pair of submedian costae, basally with few distinct punctures; in apical 1/3 weakly rugose-punctate; sparsely setose. Pronotum punctate with small punctures becoming larger from base to apex; sides anteriorly with large punctures, posteriorly subglabrous. Elytra with striae indistinct, marked by small to minute punctures, intervals with row of minute punctures. Femora edentate, with distinct anteroventral ridge. Metafemur posteriorly subglabrous except subapically with stridulatory patch. Aedeagus (Fig. 70b) with sides of body subparallel, apex subtruncate, with small median tip; endophallus with two pairs of narrow sclerites; complex transfer-apparatus symmetrical; ductus ejaculatorius with bulbus. Intraspecific variation. Length 2.43–3.03 mm. Punctures of pronotum relatively small in specimens from Poga, especially basally; in specimens from Bokondini and Lake Habbema pronotum evenly coarsely punctate except along subglabrous midline.
Material examined
Holotype (MZB): ARC1753 (EMBL # HE616030), WEST NEW GUINEA, Jayawijaya Reg., Poga, S03°47.631', E138°35.459' to S03°47.406', E138°35.507', 2260–2410 m, 14-VII-2010. Paratypes (ARC, NHMB, SMNK, ZSM): WEST NEW GUINEA, Jayawijaya Reg.: 3 exx, ARC1755 (EMBL # HE616032), same data as holotype; 1 ex, ARC1752 (EMBL # HE616029), Poga, S03°47.575', E138°33.155' to S03°47.473', E138°33.163', 2620–2715 m, 15-VII-2010; 1 ex, ARC1714 (EMBL # HE615994), Jiwika, Kurulu, S03°57.161', E138°57.357' to S03°56.977', E138°57.441', 1875–1990 m, 12-VII-2010; 2 exx, Jiwika, 1800–2300 m, 31-V-1998; 2 exx, Ilugwa, trail to Pass valley, 1900–2500 m, 14-IX-1990; 1 ex, ARC1806 (EMBL # HE616083), Bokondini, S03°40.345', E138°42.386' to S03°40.255', E138°42.189', 1655–1700 m, 18-VII-2010; 8 exx, ARC1815 (EMBL # HE616092), ARC1816 (EMBL # HE616093), W Wamena, road to Lake Habbema, S04°07.625', E138°49.992', 2520 m, 20-VII-2010; 62 exx, W Wamena, road to Lake Habbema, S04°08.256', E138°49.049', 2770 m, 20-VII-2010; 21 exx, Baliem-vall., ca. 1700 m, III-1992.
Distribution
Jayawijaya Reg. (Bokondini, Poga, Ilugwa, Jiwika, L. Habbema). Elevation: 1700–2770 m.
Biology
Beaten from foliage of montane forests.
Etymology
This epithet is based on the Latin adjective rhomboidalis (shaped like a rhomboid) and refers to the body-shape.
Notes
Trigonopterus rhomboidalis Riedel, sp. n. was coded as “Trigonopterus sp. 81” 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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