Trigonopterus syarbis 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 : 83-84

Taxon classification Animalia Coleoptera Curculionidae

90. Trigonopterus syarbis Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 90a). Length 2.45 mm. Color of legs and antennae ferruginous; remainder black; elytron with reddish coppery lustre. Body in dorsal aspect with marked constriction between pronotum and elytron; in profile dorsally convex. Rostrum with median and pair of submedian ridges becoming in distinct apically; intervening furrows each with row of coarse punctures and sparse, suberect, piliform scales; epistome with indistinct, transverse ridge. Pronotum with sides weakly converging to subapical constriction; disk with pair of shallow submedian impressions, coarsely punctate, reticulate; each puncture containing inconspicuous seta; medially with indistinct ridge. Elytra with striae 1-7 deeply incised, with sparse rows of suberect, yellowish, piliform scales; intervals flat, punctate; near base and apex scales slightly more dense. Anteroventral ridge of femora distinct, in meso- and metafemur forming large tooth. Metafemur subapically with stridulatory patch. Dorsal tibial edge subbasally with angulation; mesotibia in apical 1/3 with tooth on dorsal edge. Onychium minute, drop-shaped, with median spine instead of pair of claws. Abdominal ventrite 5 flat, coarsely punctate. Penis (Fig. 90b) with sides of body subparallel, diverging to bisinuate apex; apical orifice with fringe of long setae; transfer apparatus small, compact; apodemes 1.7 × as long as body; ductus ejaculatorius without indistinct bulbus.

Material examined.

Holotype (MZB): ARC2195 (EMBL # LM655651), East Nusa Tenggara Prov., Flores, Ruteng, Mt. Ranaka, sample 1, S08°37.321', E120°31.463', 1535 m, 08-III-2011.

Distribution.

East Nusa Tenggara Prov., Flores (Ruteng). Elevation: 1535 m.

Etymology.

This epithet is based on the weevil genus Syarbis to which it bears some superficial resemblance e.g. in the reduction of the onychium. It is to be treated as a noun in apposition.

Notes.

Trigonopterus syarbis Riedel, sp. n. was coded as " Trigonopterus sp. 350".