Trigonopterus yoda Riedel

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

104. Trigonopterus yoda Riedel sp. n.

Diagnostic description.

Holotype, male (Fig. 104a). Length 2.71 mm. Color of antennae light ferruginous; legs and head dark ferruginous; remainder black with slight bluish luster. Body subovate; in dorsal aspect with distinct constriction between pronotum and elytron; in profile dorsally convex. Rostrum at base markedly bent ventrad; with lateral flanges in front of eyes; dorsally with distinct median carina and pair of submedian ridges; intervening furrows each with row of erect, clavate scales; epistome indistinct. Pronotum laterally with marked subapical constriction; except near base disk coarsely punctate; interspaces subglabrous, reticulate; with subglabrous median ridge. Elytra with striae marked by dense rows of small punctures and weak hairlines; intervals each with a similar row of punctures; interspaces subglabrous; subapically with sparse short setae; apex subtruncate. Femora edentate; anteroventral ridge distinct; anterior surface coarsely punctate, each puncture with subclavate scale. Metafemur dorsally denticulate; subapically with stridulatory patch. Metatibia with dorsal edge denticulate. Abdominal ventrites 1-2 concave, subglabrous, with long erect slightly curved setae; ventrite 5 flat, punctate, microreticulate. Penis (Fig. 104b) with sides of body subparallel; apex with median constriction, with sparse setae; apodemes 2.6 × as long as body of penis; transfer apparatus thick flagelliform, S-shaped, 1.3 × longer than body of penis; ductus ejaculatorius with indistinct bulbus. Intraspecific variation. Length 2.28-2.73 mm. Female rostrum slender, dorsally with ridges less distinct; at base with few erect scales, anteriorly nude.

Material examined.

Holotype (MZB): ARC3253 (GenBank # MK260584), C-Sulawesi Prov., Ampana, Bongka, Mire, 01°08.202'S 121°26.673'E, 414 m, sifted, 19-V-2013. Paratypes (MZB, SMNK): C-Sulawesi Prov., Ampana: 2 exx, ARC3254 (GenBank # MK260587), ARC3255 (GenBank # MK260586), same data as holotype; 19 exx, ARC3244 (GenBank # MK260588), ARC3245 (GenBank # MK260589), ARC3246 (GenBank # MK260585) Tanjung Api, 00°49.855'S 121°36.493'E, 166 m, sifted, 18-V-2013; 1 ex, Tanjung Api, 00°49.687'S 121°36.560'E, 130 m, sifted, 18-V-2013.

Distribution.

C-Sulawesi Prov. (Ampana). Elevation 170-410 m.

Biology.

In leaf litter of lowland forest.

Etymology.

This epithet is a noun in apposition based on the fictional character Yoda in George Lucas´ Star Wars movies. It appears to fit to a small greenish forest-dwelling creature.

Notes.

Trigonopterus yoda Riedel, sp. n. was coded as " Trigonopterus sp. 529".