Trigonopterus deplanatus Riedel

Riedel, Alexander & Taenzler, Rene, 2016, Revision of the Australian species of the weevil genus Trigonopterus Fauvel, ZooKeys 556, pp. 97-162: 116-117

publication ID

http://dx.doi.org/10.3897/zookeys.556.6126

publication LSID

lsid:zoobank.org:pub:FFA73BF5-1AA3-4BF0-85B8-1C44F838B040

persistent identifier

http://treatment.plazi.org/id/A0B05E4E-B897-4A78-941D-E0B9F4B48EB3

taxon LSID

lsid:zoobank.org:act:A0B05E4E-B897-4A78-941D-E0B9F4B48EB3

treatment provided by

ZooKeys by Pensoft

scientific name

Trigonopterus deplanatus Riedel
status

sp. n.

Taxon classification Animalia Coleoptera Curculionidae

12. Trigonopterus deplanatus Riedel   sp. n.

Diagnostic description.

Holotype (Fig. 12a). Length 2.98 mm. Color black; antenna and legs ferruginous. Body with marked constriction between pronotum and elytron; in profile convex. Rostrum in basal half with median costa and pair of submedian costae, intervening furrows with rows of mesad directed setae; in apical third scabrous; epistome posteriorly with transverse ridge; base dorsally weakly protruding, weakly projecting from profile. Forehead coarsely punctate. Pronotum subquadrate, sides weakly converging, apex subtruncate; disk punctate-reticulate; interspaces between punctures narrow, partly broken away; along midline with row of ca. 20-23 punctures; in anterior half with median ridge bordered by pair of shallow depressions. Elytra cuneiform; from humeri markedly converging to narrow apex; dorsally flattened; base bisinuate; striae deeply incised; intervals costate, punctate with small punctures. Legs. Femora densely punctate. Profemur with subbasal callus anteriorly projecting. Tibiae subbasally with dorsal angulation. Abdominal ventrites 1 laterally swollen, medially concave, with course punctures; abdominal ventrite 2 swollen; ventrite 5 densely punctate, weakly concave. Penis (Fig. 12b) with sides of body subparallel; apex subangulate; transfer apparatus funnel-shaped, with asymmetrical extension on one side; ductus ejaculatorius without bulbus.

Material examined.

Holotype (QMBA): ARC3893 (PCR failed), Queensland, Cairns, Mt. Williams, S16°55', E145°40', 850 m, rainforest, sieved litter, Berlesate 868, 03-XII-1993.

Distribution.

Queensland: Mt. Williams.

Biology.

Sifted from leaf litter in primary forest.

Etymology.

This epithet is based on the Latin participle deplanatus (levelled) and refers to the dorsally flattened body.