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Holotype, male (Fig. 61a). Length 3.68 mm. Color of antennae and tarsi ferruginous; remainder black with slight bronze luster. Body subovate; in dorsal aspect with distinct constriction between pronotum and elytron; in profile dorsally convex. Rostrum dorsally with median and pair of submedian ridges, converging on forehead; intervening furrows each with sparse row of suberect piliform scales. Pronotum with sides converging in straight line to distinct subapical constriction; disk densely coarsely punctate-reticulate, medially costate; with scattered recumbent narrow scales. Elytra with striae deeply impressed; intervals costate, subglabrous, sutural interval densely punctate, intervals 2–7 each with single row of punctures; with scattered recumbent narrow scales. Profemur with anteroventral ridge simple, ending with small blunt tooth. Meso- and metafemur with anteroventral ridge crenate, ending with small acute tooth; anterior surface densely punctate, each puncture with recumbent narrow scale. Metafemur with dorsoposterior edge weakly crenate; subapically with stridulatory patch. Metatibia subbasally widened, dorsal contour subangulate. Abdominal ventrites 1–2 medially concave, subglabrous; sublaterally with suberect scales; ventrite 5 at middle with shallow pit, coarsely punctate, microreticulate, sparsely setose. Penis (Fig. 61b) with sides of body subparallel, weakly converging to subangulate apex, sparsely setose; endophallus brownish, with numerous folds; apodemes 3.2 × as long as body of penis; transfer apparatus spiniform; ductus ejaculatorius basally sclerotized, without bulbus.
Holotype (MZB): ARC3024 (GenBank # MK260583), S-Sulawesi Prov., Tanah Toraja, Bittuang, Gn. Ponding, 02°56.446'S 119°38.075'E, 1625 m, sifted, 09-V-2013.
S-Sulawesi Prov. (Tanah Toraja). Elevation ca. 1625 m.
In leaf litter of montane forest.
This epithet is a Latinized adjective based on the Greek prefix para (next to; nearby) and the name of Trigonopterus collaris Riedel, sp. n., a sibling species.
Trigonopterus paracollaris Riedel, sp. n. was coded as “Trigonopterus sp. 528”. This species is closely related to Trigonopterus collaris Riedel, sp. n., from which it can be distinguished by the elytral sculpture and the morphology of the male genitalia.
- Riedel, A; Narakusumo, R; 2019: One hundred and three new species of Trigonopterus weevils from Sulawesi ZooKeys, (828): 1-153. doi