Trigonopterus scissops Riedel

Riedel, Alexander, Sagata, Katayo, Surbakti, Suriani, Rene Taenzler, & Michael Balke,, 2013, One hundred and one new species of Trigonopterus weevils from New Guinea, ZooKeys 280, pp. 1-150 : 67

75. Trigonopterus scissops Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 75a). Length 1.78 mm. Color black; antenna and tarsi ferruginous; tibiae and femora dark ferruginous. Body subovate; in dorsal aspect and in profile with marked constriction between pronotum and elytron. Rostrum with submedian and sublateral pair of furrows; epistome simple. Eyes large, divided into dorsal and ventral portions by marked incision of posterior margin. Pronotum with marked subapical constriction; densely punctate with deep punctures; each puncture with one narrow, elongate, ochre scale. Elytra with striae deeply incised; intervals costate, each with one row of narrow scales. Metafemur subapically without stridulatory patch. Tibia apically confluent with stout uncus. Onychium ca. 1.9 × longer than tarsomere 3. Aedeagus (Fig. 75b) dorsoventrally flattened, widened to subangulate apex; transfer apparatus short, tubuliform. Intraspecific variation. Length 1.78-2.10 mm.

Material examined.

Holotype (MZB): ARC0836 (EMBL # HE615518), WEST NEW GUINEA, Manokwari Reg., Arfak Mts, Mokwam, Siyoubrig, S01°07.066', E133°54.710', 1870 m, 11-XII-2007, sifted. Paratypes (SMNK, ZSM): WEST NEW GUINEA, Manokwari Reg., Arfak Mts: 7 exx, ARC0835 (EMBL # HE615517), ARC0837 (EMBL # HE615519), same data as holotype.

Distribution.

Manokwari Reg. (Arfak Mts). Elevation: 1870 m.

Biology.

Sifted from leaf litter in montane forest.

Etymology.

This epithet is composed of the Latin participle scissus (split) and the Greek noun ops (eye) and refers to the remarkable morphology of the eye of this species.

Notes.

Trigonopterus scissops Riedel, sp. n. was coded as " Trigonopterus sp. 55" by Tänzler et al. (2012).