Australosagola jungjooni, 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.15930467
persistent identifier	https://treatment.plazi.org/id/A5B8BB60-BBA8-5901-A73C-51D03DCC1A17
treatment provided by	ZooKeys by Pensoft
scientific name	Australosagola jungjooni
status	sp. nov.

Treatment

Australosagola jungjooni sp. nov.

Figs 1 J View Figure 1 , 2 H View Figure 2 , 11 View Figure 11 , 13 View Figure 13

Type material.

Holotype. Australia: New South Wales: • ♂ (aedeagus dissected; ANIC), “ AUSTALIA: NSW, / Kosciusko Nat. Park / 13 km NW Jindabyne / 1 km W Sawpit Crk. // Cmpgd., 1240 m, V- 2 - / 1993, DSChandler / sift basal litter / Euc. dalrympleana ” . Paratypes (n = 2; 2 ♀♀). Australia: New South Wales: • 1 ♀ (slide-mounted; UNHC), Kosciusko Nat. Park 13 km NW Jindabyne 1 km W Sawpit Crk. Cmpgd ., 1,240 m, 2 V 1993, Euc. dalrympleana , Euc. pauciflora , & grass litters, D. S. Chandler ; • 1 ♀ ( FMNH), Mt. Brown, Flora Res., 0.5 km SSW Cochrane Dam , warm-temp, rainforest, 950 m, 36°35'S, 149°27'E, 20 XII 1986 – 15 II 1987, FMHD#86-648 , flight intercept (window) trap, A. Newton & M. Thayer 767 GoogleMaps .

Diagnosis.

This species can be distinguished from other species by the following characters: antennomere 3 transverse, 4–7 subquadrate (Fig. 11 A, B, G View Figure 11 ), apex of aedeagus lacking sharp projection in lateral view (Fig. 11 N View Figure 11 , black arrow).

Male description.

Length. 2.2–2.3 mm. Head. Head with margins of frontal sulcus contiguous, area posterior to frontal rostrum deeply impressed around frontal fovea; broader than long, widest across eyes (Fig. 11 C View Figure 11 ). Vertexal foveae well-developed (Fig. 11 C View Figure 11 ). Antennomere 1 cylindrical and longer than wide; 2 subquadrate and longer than wide; 3 smallest, subquadrate and flattened; 4–8 subquadrate and as long as wide; 9 and 10 subquadrate and transverse (Fig. 11 A View Figure 11 ). Thorax. Prothorax as long as wide. Elytra with three basal elytral foveae (1 being fovea at base of sutural stria), discal elytral foveae with short discal striae, and fovea in sutural striae. Metatrochanter with ventral margin angulate (Fig. 11 E View Figure 11 ). Abdomen. Abdominal sternites 4 and 5 (VI – VII) largely medially impressed (Fig. 11 E View Figure 11 ). Abdominal tergite 2 (V) ~ 2 / 3 length of tergite 3 (VI; Figs 1 J View Figure 1 , 2 H View Figure 2 ). Genitalia. Length 0.44 mm, aedeagus symmetrical, preapex of median lobe laterally angulate, then evenly convergent to broad truncate apex with median point in ventral view (Fig. 11 L View Figure 11 , black arrow), in basoventral view apical 1 / 3 broadly lobed with apices broadly and bluntly rounded (Fig. 11 M View Figure 11 ). Apex of median lobe with small median spine visible in ventral view (Fig. 11 L View Figure 11 , black arrow); area inflated and broadly rounded in lateral view (Fig. 11 N View Figure 11 ); W-shaped projection at base of median lobe distinct in ventral and basoventral views (Fig. 11 L, M View Figure 11 ); phallobase with lateral margins broadly rounded (Fig. 11 L, M View Figure 11 ), slightly curved in lateral view, with basal margin hooked (Fig. 11 N View Figure 11 ).

Female sexual characters.

Antennomere 1 cylindrical and longer than wide; 2 slightly subconical and longer than wide; 3 smallest, transverse; 4–10 larger and transverse (Fig. 11 B, G View Figure 11 ).

Comment.

Because only a single male specimen was available, we could not confirm the presence of subbasal elytral foveae. However, in females we were able to confirm the presence of two subbasal elytral foveae, as is found in the other species. Specimens of A. jungjooni sp. nov. can be distinguished from other Australosagola species, except A. minsangi , by the presence of transverse antennomere 3 for both sexes. Australosagola jungjooni sp. nov. can be separated from A. minsangi by antennomeres 4–7 of A. jungjooni being more subquadrate, while these antennomeres are greatly transverse, almost disc-like, for A. minsangi (Figs 6 A, B, G View Figure 6 , 11 A, B, G View Figure 11 ). Also, the aedeagus of A. jungjooni resembles that of A. minsangi , but the apical part of the aedeagus in lateral view is more acutely projecting in A. minsangi (Fig. 6 N View Figure 6 ), while for A. jungjooni it is quite bulbous (Fig. 11 N View Figure 11 , black arrow).

Etymology.

This species is named for a respected mentor of the first author, an insect ecology specialist, Dr. Jung-Joon Park.

Distribution.

New South Wales (Fig. 13 View Figure 13 , black stars).

Habitat.

Specimens of this species were collected by sifting leaf and grass litters at the base of Eucalyptus trees, or were taken by flight intercept traps (F. I. T.) in Eucalyptus woodlands or warm-temperate rainforests.