Australosagola helenae Choi & Chandler & Park 2025, comb. nov.

Australosagola helenae (Oke, 1925) comb. nov. Figs 1 D, 2 C, 5, 14 Sagola helenae Oke, 1925: 7. Type locality: Evelyn, Victoria. Holotype male (MVMA). Chandler 2001: 52. Type material. Holotype. Australia: Australian Capital Territory: • ♂ (MVMA), “ Evelyn. V. / s. 6.22 / C. Oke // Sagola / helenae / ♂ Oke // 1059 / Type ♂ // MUS VIC. / ENTO 2015-1 L ”. Other material examined (n = 30; 17 ♂♂, 13 ♀♀). See Suppl. material 1. Diagnosis. Australosagola helenae comb. nov. can be distinguished from other Australosagola by the following characters: abdominal sternite 5 (VII) with small median, preapical tubercle (Fig. 5 E, white arrow), lacking preapical setal rows (Fig. 5 E, K). Male description. Length 2.2–2.7 mm. Body brown to reddish-brown. Head. Head in dorsal view with concavity at base of frontal rostrum around frontal fovea. Vertexal foveae well-developed (Fig. 5 C, H). Antennomere 1 cylindrical and longer than wide; 2 subquadrate and longer than wide; 3 smallest and subconical; 4–7 subquadrate, longer than wide, swollen at middle; 8 subquadrate, as long as wide; 9 and 10 subquadrate and transverse (Fig. 5 A, G). Thorax. Prothorax slightly broader than long, widest at midpoint (Fig. 5 I). 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. 5 E, J). Abdomen. Abdominal tergite 2 (V) ~ 1 / 2 length of 3 (VI) (Fig. 1 D). Abdominal sternite 5 (VII) slightly medially impressed (Fig. 5 E). Genitalia. Length 0.32 mm, aedeagus symmetrical, apex of median lobe rounded and bulbous in ventral and basoventral views (Fig. 5 L – N). Pair of edentate projections at midpoint of median lobe longer than parameres and not curved at apices in basoventral and lateral views, shortly curved in ventral view (Fig. 5 L, M). Pair of tubercles dorsal to projection [Fig. 5 L (black arrow), N (black arrow)]. Hook-shaped projection at basal part of median lobe only slightly curved in lateral view, projection appearing to be M-shaped and directed apically at basal part of median lobe in ventral view, phallobase narrowly rounded at apex in ventral view, shortly bent in lateral view (Fig. 5 L – N). Female sexual characters. Abdominal sternites convex, apical portion of abdominal sternite 5 (VII) convex (Fig. 5 F). Comment. Australosagola helenae and A. jiwooki sp. nov. are the only species that have males with a small, median, preapical tubercle on abdominal sternite 5 (VII) [Figs 5 E (white arrow), K (white arrow), 8 H (white arrow)], while A. helenae is separated from A. jiwooki by the lack of the pair of setal clusters at the apex of the median projection at the posterior margin (Figs 5 K, 8 H, black arrow). Distribution. New South Wales, Victoria, and the Australian Capital Territory (Fig. 14, black hexagons). Habitat. Specimens of this species were collected using flight intercept traps (F. I. T.), spraying pyrethrin on logs, and by sifting leaf, log or forest floor litter in mallee, woodland, or most commonly in wet sclerophyll forests dominated by Nothofagus cunninghami and Eucalyptus species.