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Holotype (Fig. 17a). Length 3.22 mm. Color black; antenna and tarsi ferruginous. Body subrhomboid, with marked constriction between pronotum and elytron; in profile convex. Rostrum with median ridge and pair of submedian ridges; intervening furrows with rows of coarse punctures each containing one mesad directed seta; base dorsally protruding, markedly projecting from profile subangularly; epistome posteriorly with subangulate ridge. Forehead coarsely punctate-rugose. Pronotum with sides converging to apex, almost without subapical constriction; foveate-reticulate; each fovea containing one inconspicuous seta; interspaces subglabrous. Elytra cuneiform, from broad rounded humeri markedly converging to narrow apex; base bisinuate; striae deeply incised; intervals costate, with 1-2 rows of small punctures; sutural interval subglabrous except few punctures near base; intervals 2-5 behind middle with inconspicuous transverse patches of narrow recumbent scales. Legs. Femora densely punctate. Profemur with subbasal callus anteriorly projecting. Tibiae subbasally with dorsal angulation; pro- and metatibia subapically with suprauncal denticle. Abdominal ventrites 1-2 laterally swollen, medially forming common cavity; ventrite 5 coarsely punctate, weakly concave. Penis (Fig. 17b) with sides of body subparallel; apex subtruncate; endophallus with pair of subtriangular sclerites; transfer apparatus flagelliform; ductus ejaculatorius with distinct bulbus. Intraspecific variation. Length 2.59–3.22 mm. Body in smaller specimens and females more slender. Female rostrum dorsally somewhat flattened; median ridge and pair of submedian costae subglabrous; epistome simple. Female abdominal ventrite 5 flat.
Holotype (QMBA): ARC3723 (EMBL # LN888205), Queensland, Mission Beach, Clump Mt. N.P., Bicton Hill, S17°50.499', E146°05.905', sample 1, 150 m, 15-IV-2014. Paratypes (QMBA, SMNK): Queensland: 3 exx, ARC3724 (EMBL # LN888206), ARC3725 (EMBL # LN888207), ARC3726 (EMBL # LN888208), same data as holotype; 2 exx, ARC3740 (EMBL # LN888222), ARC3741 (EMBL # LN888223), Garradunga, Polly Ck., N Innisfail, Hasenpusch property, S17°27.388', E146°01.200', sample 1, 70 m, 16-IV-2014; 1 ex, Garradunga, Polly Ck., N Innisfail, Hasenpusch property, S17°27.306', E146°01.214', sample 2, 103 m, 16-IV-2014; 2 exx, Garradunga, Polly Ck., N Innisfail, Hasenpusch property, S17°27.252', E146°01.222', sample 3, 105 m, 16-IV-2014; 1 ex, ARC3731 (EMBL # LN888213), Garradunga, Polly Ck., N Innisfail, Hasenpusch property, S17°27.458', E146°01.227', sample 4, 82 m, 16-IV-2014; 3 exx, Stone Ck. (Hasenpusch), 01-XI-1995-06-II-1996, 100 m, pitfall traps, S17°28', E146°01'; 2 exx, Kirrama Range, 09-XII-1986, Berlesate 730, S18°10', E145°45', rainforest, 700 m, sieved litter; 1 ex, Cardwell range, Upper Broadwater Ck. Valley, 18-XII-1986-14-I-1987, 750 m, RF, Pitfall Traps.
Queensland: Mission Beach, Cardwell Range, Kirrama Range, Garradunga.
Sifted from leaf litter in primary forest.
This species is named in honor of Jack Hasenpusch (Garradunga), who preserves the habitat of this and other Trigonopterus species on his insect farm.
Trigonopterus hasenpuschi Riedel, sp. n. was coded as “Trigonopterus sp. 554”.
- Riedel, A; Tänzler, R; 2016: Revision of the Australian species of the weevil genus Trigonopterus Fauvel ZooKeys, (556): 97-162. doi