Trigonopterus kurandensis Riedel

Riedel, Alexander & Taenzler, Rene, 2016, Revision of the Australian species of the weevil genus Trigonopterus Fauvel, ZooKeys 556, pp. 97-162 : 125-127

Taxon classification Animalia Coleoptera Curculionidae

19. Trigonopterus kurandensis Riedel sp. n.

Diagnostic description.

Holotype (Fig. 19a). Length 3.19 mm. Color black; antenna and legs ferruginous. Body subovate, with shallow constriction between pronotum and elytron; in profile convex. Rostrum with median ridge and pair of submedian ridges ending in apical third; intervening furrows with rows of coarse punctures each containing one mesad directed seta; base dorsally protruding, markedly projecting from profile subangularly; epistome posteriorly with curved ridge bearing 4 denticles. Forehead coarsely punctate-rugose. Pronotum with subapical constriction; disk coarsely punctate-reticulate; with median costa; near middle with pair of weak swellings, further laterad with clusters of sparse yellow recumbent scales. Elytra with striae deeply incised; intervals costate, microreticulate, punctate, with few scattered recumbent 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. Abdominal ventrites 1-2 laterally swollen, medially forming common cavity; ventrite 5 punctate, weakly concave. Penis (Fig. 19b) with sides of body weakly converging, in apical third with constriction, apex rounded; transfer apparatus flagelliform, ca. 3.0 × longer than body of penis; ductus ejaculatorius without bulbus. Intraspecific variation. Length 2.97-3.19 mm. Female body more slender, surface more polished. Female rostrum dorsally somewhat flattened; median costa and pair of submedian costae subglabrous; epistome simple. Female abdominal ventrites 1-2 medially flat; ventrite 5 coarsely punctate, basally swollen, apically flat.

Material examined.

Holotype (QMBA): ARC3711 (EMBL # LN888193), Queensland, Kuranda N.P., Saddle Mountain Road, S16°49.094', E145°39.712', sample 2, 637 m, 31-III-2014. Paratypes (ANIC, QMBA, SMNK): Queensland: 10 exx, ARC3710 (EMBL # LN888192), ARC3712 (EMBL # LN888194), ARC3713 (EMBL # LN888195), same data as holotype; 2 exx, Kuranda N.P., Saddle Mountain Road, S16°49.106', E145°39.759', sample 1, 637 m, 31-III-2014; 1 ex, ARC4052 (PCR failed), Kuranda, Black Mt. Rd., S17°47', E145°39', rainforest, sieved litter, Q.M. Berlesate No. 223, 360 m, 09-VI-1980; 4 km W of Kuranda, S16°49', E145°36', ANIC Berlesate 340, 450 m, 27-VI-1971.

Distribution.

Queensland: Kuranda.

Biology.

Sifted from leaf litter in primary forest.

Etymology.

This epithet is an adjective based on the name of Kuranda, the type locality.

Notes.

Trigonopterus kurandensis Riedel, sp. n. was coded as " Trigonopterus sp. 558".