|Notice:||This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see
). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly.
This page should be cited as follows (rationale):
Citation formats to copy and paste
TY - JOUR
See also the citation download page at the journal.
Holotype, male (Fig. 34a). Length 2.15 mm. Color black; legs and rostrum deep ferruginous; antenna light ferruginous. Body laterally somewhat compressed, ovate; without constriction between pronotum and elytron; in profile evenly convex. Rostrum dorsally in basal third with low median ridge and pair of submedian ridges; apically subglabrous. Eyes large. Pronotum densely punctate; dorsally punctures small, laterally larger, each with one minute seta; without scales. Elytra dorsally subglabrous, stria 1–2 hardly visible; laterally strial punctures large, relatively shallow. Femora with anteroventral ridge. Profemur converging from base to apex. Meso- and metafemur with dorsoposterior edge in apical third shortened; metafemur subapically without stridulatory patch. Tibiae simple, without rows or brushes of long setae; metatibia subapically with small suprauncal projection. Metaventrite laterally forming acute process over metacoxa, reaching tibial insertion. Metaventrite and abdominal ventrite 1 subglabrous, with sparse recumbent setae. Abdominal ventrite 2 similar to ventrites 3–4. Abdominal ventrite 5 with transverse depression, without distinct cavity; subapically with median denticle. Aedeagus (Fig. 34b) apically sinuate, with deep median incision; ductus ejaculatorius without bulbus. Intraspecific variation. Length 1.98–2.48 mm. Female abdominal ventrite 5 almost flat, densely punctate.
Holotype (MZB): ARC0441 (EMBL # FN429152), WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani, S02°32.2', E140°30.4', 545–700 m, 02-XII-2007, beaten. Paratypes (ARC, SMNK, ZSM): WEST NEW GUI-NEA, Jayapura Reg., Cyclops Mts, Sentani: 38 exx, ARC0442 (EMBL # FN429153), ARC0443 (EMBL # FN429154), same data as holotype; 1 ex, ARC0653, S02°32.3', E140°30.4', 350–620 m, 19-XI-2007, beaten; 2 exx, S02°31.8', E140°30.5', 600–900 m, 28-XI-2007; 2 exx, S02°32.0', E140°30.4', 700–900 m, 02-XII-2007; 4 exx, S02°31.6', E140°30.4', 900–1100 m, 28-XI-2007, beaten; 11 exx, 950–1450 m, 03-X-1992; 21 exx, 600–1000 m, 05-X-1991; 2 exx, 800–1000 m, 07-VIII-1992; 6 exx, 300–1400 m, 10-VIII-1991; 5 exx, 400–800 m, 07-VIII-1992; 4 exx, 350–850 m, 16-X-1996; 1 ex, 300–550 m, 02-X-1992.
Jayapura Reg. (Cyclops Mts). Elevation: 620–950 m.
Collected by beating foliage in primary forests.
This epithet is based on the Latin noun granum (small kernel, seed) in apposition and refers to the general habitus.
Trigonopterus granum Riedel, sp. n. was coded as “Trigonopterus sp. 15” by Riedel et al. (2010) and Tänzler et al. (2012), respectively “Trigonopterus spo” in the EMBL/GenBank/DDBJ databases. It is closely related to Trigonopterus pseudogranum sp. n., Trigonopterus velaris sp. n., and Trigonopterus imitatus sp. n.; from the latter two it can be distinguished by its sparsely punctate body and the structure of its male abdominal ventrite 5. The externally very similar Trigonopterus pseudogranum sp. n. is best separated by the cox1-sequence which diverges 12.1 %.
- 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
- Riedel A, Daawia D, Balke M (2010) Deep cox1 divergence and hyperdiversity of Trigonopterus weevils in a New Guinea mountain range (Coleoptera, Curculionidae). Zoologica Scripta, 39 (1): 63-74. doi: 10.1111/j.1463-6409.2009.00404.x
- 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