Australosagola jiwooki, Choi & Chandler & Park, 2025

Choi, Su-Ho, Chandler, Donald S. & Park, Jong-Seok, 2025, Australosagola, a new genus of pselaphine beetles from southern Australia (Coleoptera, Staphylinidae, Pselaphinae, Faronitae) with descriptions of seven new species, ZooKeys 1245, pp. 177-205 : 177-205

publication ID	https://doi.org/10.3897/zookeys.1245.151556
publication LSID	lsid:zoobank.org:pub:C4112641-FC74-4967-AC60-198EF5E7E381
DOI	https://doi.org/10.5281/zenodo.15930447
persistent identifier	https://treatment.plazi.org/id/E31E2FD6-1083-5B04-9AE5-E85324CF230B
treatment provided by	ZooKeys by Pensoft
scientific name	Australosagola jiwooki
status	sp. nov.

Treatment

Australosagola jiwooki sp. nov.

Figs 1 G View Figure 1 , 8 View Figure 8 , 14 View Figure 14

Type material.

Holotype. Australia: Victoria: • ♂ (aedeagus dissected; ANIC), “ AUSTL.: VIC.: Mt. Buffalo / N. P., above Eurobin Point / 820 m 36.42S 146.50E / 23. I. 1987 / wet sclerophyll forest // A. Newton & M. Thayer 805 / FMHD#87-202 / berl., leaf & log / litter, forest floor ” (actual coordinate data: 36°42'S, 146°50'E = - 36.70, 146.83) GoogleMaps . Paratype (n = 1; 1 ♂). Australia: Victoria: • 1 ♂ (slide-mounted; FMNH), same data as holotype GoogleMaps .

Diagnosis.

Australosagola jiwooki sp. nov. can be distinguished from other Australosagola species by the weakly defined frontal fovea (Fig. 8 B, E View Figure 8 , white arrows), and by the combination of a median preapical tubercle and small mediolateral clusters of spines at the apex of male sternite 5 (VII; Fig. 8 C, H View Figure 8 ).

Male description.

Length 2.4 mm. Body reddish-brown. Head. Head in dorsal view, shallowly impressed at base of frontal rostrum (Fig. 8 B, E View Figure 8 ). Vertexal foveae well-developed (Fig. 8 B, E View Figure 8 ). Antennomere 1 subconical and longer than wide; 2 rounded and longer than wide; 3 smallest, subquadrate and transverse; 4–6 subquadrate and longer than wide; 7 subquadrate and as long as wide; 8 subquadrate and transverse; 9 subquadrate and as long as wide; 10 trapezoidal and transverse (Fig. 8 A, D View Figure 8 ). Thorax. Prothorax slightly broader than long (Fig. 8 F View Figure 8 ). Elytra with two subbasal elytral foveae, three basal elytral foveae (1 being fovea at base of sutural stria), discal elytral foveae with short discal striae, and fovea in sutural striae. Hind wings fully developed. Metatrochanter with ventral margin convex (Fig. 8 C, G View Figure 8 ). Abdomen. Only abdominal sternite 5 (VII) with median impression (Fig. 8 C View Figure 8 ), 5 (VII) with pair of setal clusters at apex of median projection of posterior margin (Fig. 8 C, H View Figure 8 , black arrows), with median, preapical tubercle (Fig. 8 C, H View Figure 8 , white arrows). Genitalia. Length 0.48 mm, aedeagus symmetrical, in basovental view with lateral margins roughly parallel, in lateral view apical 1 / 2 of median lobe greatly inflated; median lobe with lateral margins sub-angulate at apex in basoventral view (Fig. 8 J View Figure 8 ), pair of projections at midpoint of median lobe straight in lateral view, slightly sinuate in ventral view, slightly longer than parameres (Fig. 8 J, K View Figure 8 ). Tubercles at base of median lobe bent near base in lateral view, thickly V-shaped in ventral view (Fig. 8 I, K View Figure 8 ). Phallobase small with lateral margins evenly rounded in ventral view, flat, short, and evenly curved in lateral view (Fig. 8 I, K View Figure 8 ).

Female sexual characters.

Female unknown.

Comment.

Australosagola jiwooki has a small frontal fovea that is slightly impressed at the base of the frontal rostrum around the frontal fovea (Fig. 8 B View Figure 8 ). This species also has a unique modified form at the apex of abdominal sternite 5 (VII), a pair of median apical setal clusters that have only 6–8 setae together with a preapical median tubercle (Fig. 8 H View Figure 8 , white and black arrows).

Etymology.

This species is named for a curculionid specialist who has been an enthusiastic supporter of this study, Ji-Wook Kim.

Distribution.

Victoria (Fig. 14 View Figure 14 , red square).

Habitat.

Both specimens were collected by sifting leaf, log, and forest floor materials in a wet sclerophyll forest.