Trigonopterus boolbunensis Riedel

Riedel, Alexander & Taenzler, Rene, 2016, Revision of the Australian species of the weevil genus Trigonopterus Fauvel, ZooKeys 556, pp. 97-162 : 112

Taxon classification Animalia Coleoptera Curculionidae

9. Trigonopterus boolbunensis Riedel sp. n.

Diagnostic description.

Holotype (Fig. 9a). Length 2.10 mm. Color of head, legs, and sides of pronotum ferruginous; remainder black. Body subovate, with distinct 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 mesad directed setae; base dorsally protruding, projecting from profile; epistome posteriorly with transverse ridge. Forehead coarsely punctate-rugose. Pronotum subquadrate; sides subparallel; with distinct subapical constriction; coarsely punctate; each puncture containing one small seta, laterally each with one yellowish scale; with indistinct median ridge. Elytral striae weakly incised, with sparse rows of punctures; intervals costate, with small punctures containing small recumbent cream-colored scales; base bisinuate. Legs. Femora rugose-punctate; with scattered, narrow, cream-colored scales. Tibiae subbasally with dorsal angulation. Abdominal ventrites 1-2 laterally swollen, medially forming common cavity, with coarse punctures; ventrite 5 punctate, weakly concave. Penis (Fig. 9b) with sides of body subparallel; apex subangulate; endophallus with anchor-shaped basal sclerite; transfer apparatus spiniform; ductus ejaculatorius without bulbus.

Material examined.

Holotype (QMBA): ARC3894 (PCR failed), Queensland, Mt. Boolbun South, S15°57', E145°08', 850-1000 m, rainforest, leaf litter, Berlesate 896, 06-XI-1995.

Distribution.

Queensland: Mt. Boolbun.

Biology.

Sifted from leaf litter in primary forest.

Etymology.

This epithet is an adjective and refers to the name of the type locality, Mt. Boolbun.