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Holotype (Fig. 25a). Length 3.11 mm. Color black; antenna and legs ferruginous. Body subovate, with marked constriction between pronotum and elytron; in profile convex. Rostrum with median costa and pair of submedian costae; intervening furrows with rows of coarse punctures each containing one mesad directed seta; base dorsally protruding, markedly projecting from profile subangularly; epistome posteriorly with irregular ridge. Forehead coarsely punctate-rugose. Pronotum with subapical constriction; disk coarsely punctate; with median costa, bordered by pair of submedian longitudinal impressions. Elytra with striae deeply incised; intervals costate, microreticulate, punctate, with scattered recumbent white scales; base markedly bisinuate. Legs. Femora densely punctate. Profemur with subbasal callus anteriorly projecting. Tibiae subbasally with dorsal angulation; metatibia in apical third with blunt suprauncal projection. Metaventrite and abdominal ventrites 1-2 laterally swollen, medially forming common cavity; metaventrite and abdominal ventrite 1 with dense erect setae, abdominal ventrite 2 with erect scales; ventrite 5 punctate, weakly concave. Penis (Fig. 25b) with sides of body subparallel, apex subtruncate, with weak median incision; transfer apparatus flagelliform, curved ventrad, subequal to body of penis; ductus ejaculatorius near insertion to transfer apparatus sclerotized, forming S-shaped ribbon longer than flagellum; without bulbus. Intraspecific variation. Length 2.55–3.14 mm. Female body more slender. Female rostrum dorsally somewhat flattened; median costa and pair of submedian costae subglabrous; epistome simple. Female abdominal ventrites 1-2 medially flat; ventrite 5 punctate, concave.
Holotype (QMBA): ARC3742 (EMBL # LN888224), Queensland, Cape Tribulation, Mt. Sorrow track, S16°04.579', E145°27.081', sample 6, 283 m, 10-IV-2014. Paratypes (QMBA, SMNK): Queensland: 2 exx, ARC3743 (EMBL # LN888225), ARC3744 (EMBL # LN888226), same data as holotype; 3 exx, Cape Tribulation, Mt. Sorrow track, S16°04.491', E145°26.873', sample 3, 343 m, 10-IV-2014; 1 ex, ARC3767 (EMBL # LN888244), 2,5 km W Mt. Hartley, near Rossville – Bloomfield-road, S15°47.393', E145°18.348',sample 3, 419 m, 01-V-2014; 1 ex, Daintree N.P.,Thompson Ck., S16°07', E145°25', FIT T01f, 10-I-12-II-1998.
Queensland: Daintree N.P., Surroundings of Mt. Hartley.
Sifted from leaf litter in primary forest.
This species is named in honor of Rolf Oberprieler, who made available for study the many Trigonopterus specimens in the ANIC.
Trigonopterus oberprieleri Riedel, sp. n. was coded as “Trigonopterus sp. 557”.
- Riedel, A; Tänzler, R; 2016: Revision of the Australian species of the weevil genus Trigonopterus Fauvel ZooKeys, (556): 97-162. doi