Trigonopterus euops 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 : 27-28

29. Trigonopterus euops Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 29a). Length 1.70 mm. Color of antenna, tarsi, tibiae, and rostrum ferruginous; head and pronotum black; elytra black, with ferruginous patches near base of intervals 2-4, continued to apex with irregular patches on intervals 1-4 to apex. Body subovate; in dorsal aspect and in profile with distinct constriction between pronotum and elytron. Eyes large. Rostrum punctate, without distinct longitudinal ridges; laterally with rows of cream-colored scales. Pronotum densely punctate-reticulate; with few scattered cream-colored scales; each puncture containing one brownish seta. Elytra with striae deeply impressed, intervals costate, with scattered white scales. Femora ventrally edentate, subapically constricted. Tibial uncus simple, curved. Metafemur subapi- cally with stridulatory patch. Aedeagus (Fig. 29b) with sides of body sinuate, converging; apex extended, pointed, curved ventrad; transfer apparatus compact, symmetrical; ductus ejaculatorius basally swollen, without bulbus. Intraspecific variation. Length 1.63-1.86 mm. Ferruginous color of elytra more or less extensive. Female rostrum dorsally subglabrous, laterally punctate. Body of males rather slender, females slightly stouter.

Material examined. Holotype (MZB): ARC0784 (EMBL # HE615467), WEST NEW GUINEA, Manokwari Reg., Manokwari, Arfak Mts, S01°04.087', E 133°54.268', 1520 m, 08-XII-2007. Paratypes (SMNK, ZSM): WEST NEW GUINEA, Manokwari Reg., Manokwari, Arfak Mts: 6 exx, same data as holotype; 4 exx, ARC0775 (EMBL # HE615458), ARC0776 (EMBL # HE615459), S01°03.723', E133°54.145', 1385 m, 08-XII-2007; 2 exx, Mokwam, Siyoubrig, S01°06.107', E133°54.888', 1530 m, 10-XII-2007.

Distribution.

Manokwari Reg. (Arfak Mts). Elevation: 1385-1530 m.

Biology.

Sifted from leaf litter in montane forest.

Etymology.

This epithet is based on the Greek euops (well-sighted) and refers to the species´ relatively large eyes, at least by comparison with other edaphic species.

Notes.

Trigonopterus euops Riedel, sp. n. was coded as " Trigonopterus sp. 53" by Tänzler et al. (2012).