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Holotype, male (Fig. 30a). Length 2.73 mm. Color black; elytra orange-red, apically changing to black. Body with distinct constriction between pronotum and elytron; in profile almost evenly convex. Rostrum dorsally relatively flat, sparsely punctate, dorsolaterally with pair of furrows continuing along eye, furrows containing row of mesad directed setae. Pronotum densely punctate with punctures of subtriangular shape, interspaces larger than puncture´s width. Elytra with striae distinct, dorsally punctures small, along base and laterally punctures large; interspaces subglabrous. Femora edentate. Metafemur with indistinct, simple dorsoposterior edge; subapically with stridulatory patch. Thoracic and abdominal venter partly with dense erect setae. Aedeagus (Fig. 30b) apically subangulate, with pair of sublateral setose brushes; transfer apparatus flagelliform, longer than body; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.73–2.85 mm. Female venter subglabrous, sparsely setose with short recumbent setae.
Holotype (MZB): ARC0477 (EMBL # FN429184), WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani, S02°31.2', E140°30.5', 1420–1520 m, 30-XI-2007, beaten. Paratypes (SMNK, ZSM): WEST NEW GUINEA, Jayapura Reg., Cyclops Mts, Sentani: 9 exx, ARC0475 (EMBL # FN429182), ARC0476 (EMBL # FN429183), same data as holotype; 1 ex, S02°31.3', E140°30.5', 1200–1420 m, 30-XI-2007; 1 ex, S02°31.182', E140°30.542', 1510 m, 30-XI-2007, sifted.
Jayapura Reg. (Cyclops Mts). Elevation: 1420–1510 m.
Collected by beating foliage in montane crippled forests.
This epithet is based on the Latin adjective ferrugineus (rusty, red-brown) and refers to the species´ elytra.
Trigonopterus ferrugineus Riedel, sp. n. was coded as “Trigonopterus sp. 29” by Riedel et al. (2010) and Tänzler et al. (2012), respectively “Trigonopterus spac” in the EMBL/GenBank/DDBJ databases.
- 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