Trigonopterus disruptus
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Ordo: Coleoptera
Familia: Curculionidae
Genus: Trigonopterus
Name
Trigonopterus disruptus Riedel sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnostic description
Holotype, male (Fig. 26a). Length 2.78 mm. Color of antennae light ferruginous, legs dark ferruginous; remainder black. Body subovate, in dorsal aspect with weak constriction between pronotum and elytron; profile dorsally convex. Rostrum with median ridge and pair of submedian ridges, intervening furrows each with row of coarse punctures and sparse row of mesad directed setae; epistome with transverse subangulate ridge. Pronotum dorsally longitudinally rugose, with median costa; furrows containing sparse rows of mesad directed slender scales; laterally coarsely punctate. Elytra with striae distinct, marked by rows of punctures; each containing small white bristle, partly abraded; laterally punctures larger; intervals flat, subglabrous. Femora with simple anteroventral ridge. Metafemur subapically with stridulatory patch. Abdominal ventrite 5 at middle with shallow, densely punctate impression, with suberect scales. Penis (Fig. 26b) with sides of body slightly converging; apex subangulate, with median, subtriangular extension; dorsally behind orifice with distinct median carina, projecting convex in profile; transfer apparatus with pair of elongate, crescent-shaped sclerites; apodemes 2.8 × as long as body; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.40–2.95 mm. Color of elytra with more or less distinct bronze lustre. Female rostrum in apical half dorsally subglabrous, with submedian row of minute punctures; epistome simple. Elytra with striae as in holotype, or punctures of striae subbasally corrugate (two specimens from Tetebatu), or striae markedly impressed and intervals costate (two specimens from Senaru). Female abdominal ventrite 5 flat.
Material examined
Holotype (MZB): ARC1490 (EMBL # LM655588), West Nusa Tenggara Prov., Lombok, road between Sembalun and Sapit, sample 5, S08°26.453', E116°31.859', 1195 m, 31-III-2010. Paratypes (MZB, SMNK, ZSM): West Nusa Tenggara Prov., Lombok: 1 ex, ARC1491 (EMBL # LM655589), same data as holotype; 1 ex, ARC1486 (EMBL # LM655584), road between Sembalun and Sapit, sample 1, S08°25.110', E116°31.947', 1450 m, 30-III-2010; 2 exx, ARC1488 (EMBL # LM655586), road between Sembalun and Sapit, sample 4, S08°25.331', E116°31.841', 1405 m, 31-III-2010; 1 ex, ARC1460 (EMBL # LM655558), Tetebatu, Rinjani-trail from Orong Gerisak, sample 6, S08°29.577', E116°24.782', 1195 m, 04-IV-2010; 5 exx, ARC0164, Tetebatu, Rinjani-trail, 1200-1450 m, 07-XII-2004; 2 exx, ARC1466 (EMBL # LM655564), ARC1467 (EMBL # LM655565), sample 7, S08°29.433', E116°24.746', 1240 m, 04-IV-2010; 1 ex, ARC1485 (EMBL # LM655583), Sesaot, Rinjani-trail, sample 3, S08°29.841', E116°13.679', 625 m, 28-III-2010; 1 ex, ARC2265 (EMBL # LM655719), Senaru, Rinjani-trail, sample 4, S08°20.439', E116°24.047', 1240 m, 21-III-2011; 1 ex, ARC2266 (EMBL # LM655720), Senaru, Rinjani-trail, sample 5, S08°19.800', E116°24.107', 1015 m, 21-III-2011; 2 exx, Lombok, Senaru, Rinjani-track, sample 6, S08°19.359', E116°24.070', 860 m, 23-III-2011; 5 exx, ARC2269 (EMBL # LM655723), Senaru, Rinjani-trail, sample 7, S08°19.643', E116°24.033', 935 m, 23-III-2011; 7 exx, Senaru, Rinjani-trail, sample 8, S08°19.719', E116°24.040', 955 m, 23-III-2011; 7 exx, ARC2275 (EMBL # LM655729), ARC2276 (EMBL # LM655730), Santong, Rinjani-trail, sample 1, S08°20.715', E116°19.695', 830 m, 24-III-2011; 2 exx, Santong, Rinjani-track, sample 2, S08°20.813', E116°19.778', 870 m, 24-III-2011; 2 exx, Santong, Rinjani-track, sample 3, S08°20.996', E116°20.001', 960 m, 24-III-2011; 2 exx, Santong, Rinjani-track, sample 4, S08°21.160', E116°20.067', 1005 m, 25-III-2011; 1 ex, Santong, Rinjani-track, sample 6, S08°21.754', E116°20.476', 1315 m, 25-III-2011; 2 exx, ARC2286 (EMBL # LM655740), ARC2287 (EMBL # LM655741), Sajang, sample 1, S08°19.370', E116°29.570', 845 m, 26-III-2011; 4 exx, Mt. Rinjani, Bawnau, near Sembalun, sample 1, S08°21.136', E116°29.257', 1140 m, 26-III-2011; 3 exx, Mt. Rinjani, Bawnau, near Sembalun, S08°21.136', E116°29.257', 1140 m, collected from foliage, 26-III-2011; 2 exx, ARC2291 (EMBL # LM655745), ARC2292 (EMBL # LM655746), Sajang, sample 1, S08°21.136', E116°29.257', 1140 m, 26-III-2011; 4 exx, Mt. Pengasingan, SE Sembalun, sample 2, S08°19.354', E116°30.530', 945 m, 27-III-2011; 1 ex, Mt. Pengasingan, SE Sembalun, sample 3, S08°19.445', E116°30.603', 1005 m, 27-III-2011; 4 exx, ARC2299 (EMBL # LM655753), ARC2300 (EMBL # LM655754), Gn. Pengasingan, SE Sembalun, sample 4, S08°19.504', E116°30.767', 1035 m, 27-III-2011.
Distribution
West Nusa Tenggara Prov., Lombok (Mt. Pengasingan, Sajang, Santong, Sembalun, Senaru, Sesaot, Tetebatu). Elevation: 625–1450 m.
Etymology
This epithet is based on the Latin participle disruptus (broken apart) and refers to its phylogeography which appears to reflect the division of the species in two populations.
Notes
Trigonopterus disruptus Riedel, sp. n. was coded as “Trigonopterus sp. 292” by Tänzler et al. (2014)[1].
Original Description
- Riedel, A; Tänzler, R; Balke, M; Rahmadi, C; Suhardjono, Y; 2014: Ninety-eight new species of Trigonopterus weevils from Sundaland and the Lesser Sunda Islands ZooKeys, (467): 1-162. doi
Images
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Other References
- ↑ Tänzler R, Toussaint E, Suhardjono Y, Balke M, Riedel A (2014) Multiple transgressions of Wallace’s Line explain diversity of flightless Trigonopterus weevils on Bali. Proceedings of the Royal Society B: Biological Sciences 281: 20132528. doi: 10.1098/rspb.2013.2528
