Trigonopterus soiorum 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 : 70-71

79. Trigonopterus soiorum Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 79a). Length 3.06 mm. Color black; base of antennal scape ferruginous. Body elongate; in dorsal aspect with distinct constriction between pronotum and elytron; in profile with weak constriction. Rostrum slender; dorsally with carina and pair of short submedian ridges; at base with erect white elongate scales, apically replaced by bristles. Eyes large, medially approximate. Pronotum with disk subglabrous, with minute punctures; with distinct edge lateral edge except in apical 1/4 evenly rounded; posterior angles with coarse punctures and sparse white scales; sides along anterior margin with few white scales; above procoxa coarsely punctate. Elytra subglabrous, irregularly punctate with minute punctures; striae obsolete; basal margin straight; laterally behind humeri with ridge bordered by row of shallow punctures. Femora with anteroventral ridge distinct, terminating at base; profemur at middle with tooth. Mesofemur and metafemur dorsally densely squamose with white scales. Metafemur with smooth dorsoposterior edge; subapically without stridulatory patch. Metaventrite and abdominal ventrites 1-2 forming common, subglabrous concavity. Abdominal ventrite 5 with subrotund densely setose impression, laterally bordered by distinct ridges. Aedeagus (Fig. 79b) with body markedly curved in profile; apex subangulate, subglabrous; transfer apparatus short, spiniform; ductus ejaculatorius subapically without bulbus. Intraspecific variation. Length 3.06-3.38 mm. Female rostrum in apical 2/3 dorsally subglabrous, sparsely punctate, sublaterally with furrow containing row of setae; at base bordering eyes with white elongate scales. Female abdominal ventrite 5 flat, subglabrous.

Material examined.

Holotype (SMNK): ARC1858 (EMBL # HE616135), 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, Eastern Highlands Prov.: 1 ex, ARC1857 (EMBL # HE616134), same data as holotype; 5 exx, ARC1859 (EMBL # HE616136), ARC1860 (EMBL # HE616137), Okapa, Kimiagomo village, Verefare, S06°24.760', E145°35.575', 1940 m, 18-III-2010; 2 exx, Okapa, Kofare village, S06°25.212', E145°35.498', 2140 m, 18-III-2010, beaten; 2 exx, Okapa, Anurite village, S06°24.760', E145°35.575', 1940 m, 18-III-2010, beaten; 3 exx, Okapa, Nakaloyate village, S06°24.760', E145°35.575', 1940 m, 18-III-2010.

Distribution.

Eastern Highlands Prov. (Aiyura, Okapa). Elevation: 1940-2169 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 Soi, found on page 330 of the Papua New Guinea Telephone Directory of 2010 and treated in genitive plural.

Notes.

Trigonopterus soiorum Riedel, sp. n. was coded as " Trigonopterus sp. 58" by Tänzler et al. (2012).