Trigonopterus fissitarsis Riedel

Riedel, Alexander, Taenzler, Rene, Balke, Michael, Rahmadi, Cahyo & Suhardjono, Yayuk R., 2014, Ninety-eight new species of Trigonopterus weevils from Sundaland and the Lesser Sunda Islands, ZooKeys 467, pp. 1-162: 32

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Trigonopterus fissitarsis Riedel

sp. n.

Taxon classification Animalia Coleoptera Curculionidae

32. Trigonopterus fissitarsis Riedel  sp. n.

Diagnostic description.

Holotype, male (Fig. 32a). Length 2.04 mm. Color of antennae ferruginous, legs dark ferruginous; remainder black. Body subovate, in dorsal aspect and in profile with weak constriction between pronotum and elytron. Rostrum in basal half with median ridge and pair of submedian ridges, intervening furrows each with sparse row of mesad directed setae; in apical third weakly scabrous; epistome simple. Pronotum coarsely punctate, laterally reticulate, submedially interspaces longitudinally rugose, with median costa; with sparse, slender, subrecumbent scales. Elytra with striae deeply impressed, with row of coarse punctures, each puncture containing suberect seta; intervals costate, subglabrous; incised suture bordered by row of punctures. Femora with simple, crenate anteroventral ridge. Metafemur subapically with stridulatory patch. Meso- and metatibia with posterior surface subglabrous, sparsely setose. Protarsi with tarsomere 3 enlarged, medially deeply incised. Abdominal ventrite 5 flat, coarsely punctate, medially and subapically subglabrous. Penis (Fig. 32b) in basal half with marked constriction, in apical half sides of body subparallel; apex medially with distinct spine, with anterolateral subangular flanges; transfer apparatus compact, symmetrical; apodemes 2.3 × as long as body; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.04-2.14 mm. Female unknown.

Material examined.

Holotype (MZB): ARC2211 (EMBL # LM655667), East Nusa Tenggara Prov., Flores Isl., Ruteng, Danau Ranamese, sample 6, S08°38.370', E120°33.798', 1215 m, 11-III-2011. Paratypes (SMNK): 1 ex, ARC2212 (EMBL # LM655668), same data as holotype.


East Nusa Tenggara Prov., Flores (Lake Ranamese). Elevation: 1215 m.


This epithet is based on a combination of the Latin adjective fissus (cleft) and the Greek noun tarsos and refers to the shape of the protarsi.


Trigonopterus fissitarsis  Riedel, sp. n. was coded as " Trigonopterus  sp. 290" by Tänzler et al. (2014).