Trigonopterus pendolensis Riedel

Riedel, Alexander & Narakusumo, Raden Pramesa, 2019, One hundred and three new species of Trigonopterus weevils from Sulawesi, ZooKeys 828, pp. 1-153 : 1

63. Trigonopterus pendolensis Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 63a). Length 2.85 mm. Color of antennae and legs ferruginous; remainder black. Body elongate; in dorsal aspect with distinct constriction between pronotum and elytron; in profile dorsally flat. Rostrum dorsally with median ridge and pair of submedian ridges; intervening furrows with rows of erect setae, towards base with elongate scales; epistome short, posteriorly with transverse angulate ridge, with median denticle. Pronotum with disk subquadrate, abruptly rounded to weak subapical constriction; densely punctate; each puncture with fine, recumbent seta; interspaces between punctures subglabrous. Elytra densely irregularly punctate; some striae marked by fine hairlines; apex subtruncate; apex and base with sparse scales. Foreleg relatively long. Femora with small, acute tooth; anteroventral ridges of meso- and metafemur crenate; anterior surface coarsely punctate, reticulate, each puncture with long subclavate scale. Metafemur subapically with stridulatory patch. Dorsal edge of tibiae subbasally with tooth. Abdominal ventrites 1-2 concave, microreticulate, with sparse punctures bearing erect elongate scales; ventrite 5 with shallow median depression, coarsely punctate, with sparse erect scales. Penis (Fig. 63b) with sides of body subparallel; converging to sparsely setose, rounded apex; in profile with apex markedly curved ventrad; apodemes 2.5 × as long as body of penis; transfer apparatus short flagelliform, 0.5 × as long as body of penis; ductus ejaculatorius with indistinct bulbus. Intraspecific variation. Length 2.23-2.85 mm. Female rostrum more slender, epistome indistinct. Female foreleg shorter. Female abdominal ventrite 5 flat.

Material examined.

Holotype (MZB): ARC3132 (EMBL # LN884961), C-Sulawesi Prov., Pendolo, Boe, 02°05.405'S 120°38.551'E, 857 m, sifted, 15-V-2013. Paratypes (ARC, MZB, SMNK): C-Sulawesi Prov.: 21 exx, ARC3133 (GenBank # MK260487), ARC3134 (GenBank # MK260485), ARC6035 (GenBank # MK260484), ARC6036 (GenBank # MK260486), same data as holotype; 1 ex, Pendolo, Boe, 21-VIII-1990, sifted.

Distribution.

C-Sulawesi Prov. (Pendolo). Elevation ca. 860 m.

Biology.

In leaf litter of montane forest.

Etymology.

This epithet is a Latinized adjective based on the type locality.

Notes.

Trigonopterus pendolensis Riedel, sp. n. was coded as " Trigonopterus sp. 495".