Trigonopterus ragaorum 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 : 61-62

68. Trigonopterus ragaorum Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 68a). Length 2.57 mm. Color black; antennae and tarsi ferruginous. Body subovate; with weak constriction between pronotum and elytron; in profile evenly convex. Rostrum in basal half with distinct median ridge and pair of submedian ridges, furrows with sparse rows scales and setae; apically weakly punctate, sparsely setose. Pronotum punctate-reticulate. Elytra with striae impressed as very fine lines; strial punctures very small; intervals flat, subglabrous; basal margin bordered by row of small punctures; laterally behind humeri with ridge bordered by 4 deep punctures of stria 9. Femora edentate. Mesofemur and metafemur dorsally squamose with silvery scales. Metafemur with weakly denticulate dorsoposterior edge; subapically with stridulatory patch. Metatibia apically with uncus and minute premucro. Abdominal ventrite 5 densely setose with erect setae. Aedeagus (Fig. 68b) apically weakly pointed, sparsely setose; body dorsally with 2 rows of sparse setae; in profile apical 2/3 of body markedly curved ventrad; transfer-apparatus spiniform; ductus ejaculatorius with bulbus. Intraspecific variation. Length 2.30-2.65 mm. Female rostrum in apical half dorsally subglabrous, sparsely punctate, with shallow furrows. Female abdominal ventrite 5 with subrecumbent setae.

Material examined.

Holotype (SMNK): ARC1876 (EMBL # HE616153), PAPUA NEW GUINEA, Eastern Highlands Prov., Aiyura, S06°21.033', E145°54.597', 2169 m, 06-II-2010. Paratypes (NAIC, SMNK, ZSM): PAPUA NEW GUINEA: 29 exx, ARC1877 (EMBL # HE616154), ARC1878 (EMBL # HE616155), ARC1879 (EMBL # HE616156), ARC1880 (EMBL # HE616157), ARC1881 (EMBL # HE616158), same data as holotype; 1 ex, ARC0354 (EMBL # HE615167), Aiyura, S06°21.131', E145°54.398', 1670 m, 05-IV-2006.

Distribution.

Eastern Highlands Prov. (Aiyura). Elevation: 1670-2169 m.

Biology.

Beaten from foliage of montane forests.

Etymology.

This species is dedicated to the people of Papua New Guinea. The epithet is based on the family name Raga, found on page 315 of the Papua New Guinea Telephone Directory of 2010 and treated in genitive plural.

Notes.

Trigonopterus ragaorum Riedel, sp. n. was coded as " Trigonopterus sp. 208" by Tänzler et al. (2012).