One hundred and three new species of Trigonopterus weevils from Sulawesi Author Riedel, Alexander Author Narakusumo, Raden Pramesa text ZooKeys 2019 828 1 153 http://dx.doi.org/10.3897/zookeys.828.32200 journal article http://dx.doi.org/10.3897/zookeys.828.32200 1313-2970-828-1 2A63A74D8B304C83AB747BAF6AF6984E 2A63A74D8B304C83AB747BAF6AF6984E 12. Trigonopterus bonthainensis Riedel sp. n. Diagnostic description. Holotype, male (Fig. 12a). Length 2.65 mm. Color of antennae, legs, and elytra orange-ferruginous; pterothorax and abdomen dark ferruginous; head and prothorax black. Body subovate; in profile dorsally convex. Rostrum dorsally coarsely punctate; sublaterally with sparse row of piliform scales; epistome short, indistinct. Pronotum with disk densely coarsely punctate; interspaces between punctures reticulate, subglabrous. Elytra with striae marked by rows of small punctures; intervals flat; basal margin bordered by transverse row of deeper punctures; stria 8 along humerus with coarse punctures. Femora edentate. Meso- and metafemur with anteroventral ridge crenate. Metafemur with dorsoposterior edge weakly denticulate; subapically with stridulatory patch. Metaventrite anteriorly at middle with puncture bearing fine pointed brush of setae. Abdominal ventrites 1-2 weakly concave, at middle subglabrous, sublaterally and posteriorly with dense coarse punctures; ventrite 5 flat, coarsely punctate. Penis (Fig. 12b) with sides of body in basal 1/2 diverging, with lateral flanges, subapically converging to subangulate apex, with sparse short setae; apodemes 3.0 x as long as body of penis; transfer apparatus small; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.53-2.65 mm. Female rostrum slender, dorsally subglabrous, with two submedian rows of punctures, with pair of sublateral furrows. Material examined. Holotype (MZB): ARC3205 (GenBank # MK260504), S-Sulawesi Prov., Gn. Lompobattang, Malakaji, Parambintolo, 05°23.545'S 119°55.517'E , 1750-1850 m, 27-IV-2013, beaten. Paratype (SMNK): S-Sulawesi Prov.: 1 ex, ARC3197 (EMBL # LN884974), Gn. Lompobattang, Malakaji, Parambintolo, 05°23.545'S 119°55.517'E , 1803 m, sifted, 27-IV-2013. Distribution. S-Sulawesi Prov. (Gn. Lompobattang). Elevation ca. 1800 m. Biology. Presumably mostly on foliage in montane forests. Etymology. This epithet is a Latinized adjective based on the historical locality of "Bonthain" . "The Peak of Bonthain" is identical with Mt Lompobattang. Notes. Trigonopterus bonthainensis Riedel, sp. n. was coded as " Trigonopterus sp. 500".