Brounea daehyuni sp. nov.

(Figs. 1 h, 2h, 2s, 3h, 5)

Type material. Holotype. New Zealand: Auckland (AK): ♂ (NZAC), aedeagus dissected and mounted in balsam on clear plastic card, “ NEW ZEALAND, AK, Clevedon Scenic Reser. 0.5 km N Clevedon, 20 m, III-19- 2010 D.S. Chandler, sift forest litter by stream”, “ HOLOTYPE Brounea daehyuni Park and Carlton des. 2013”. Paratypes (n=11, 5♂, 6♀). New Zealand: Coromandel (CL): 1♂, 1♀, Great Barrier I, Little Windy Hill, 220m, 18 I–21 II 2002, P. Sutton, Forest edge Malaise trap L21045 (AMNZ); 1♂, Great Barrier I, Little Windy Hill, 100m, 25 II–9 II 2003, K. Parsons, coastal forest Malaise trap L11998 (AMNZ); Wellington (WN): 3♂, 5♀, Karori Reservoir, 5 I 1995, J. Nunn, in decayed totara wood (JTN).

Etymology. This species is named for Kee-Jeong Ahn lab alumnus, Korean aquatic beetle specialist, and an enthusiastic supporter of this study, Mr. Dae-Hyun Lee.

Diagnosis. This species can be distinguished from the other species of Brounea by the following combination of characters: large eye, one-half length of temple (Fig. 2 h); male gula with round depression bearing dense setae (Fig. 2 s: arrow); antennomeres 3–8 subquadrate, 9–10 weakly transverse; parameres emarginate at distal one-third with setae at tip (Fig. 3 h).

Description. Length 1.9–2.0 mm. Body brown, elytra, legs, antennae and maxillary palpi paler (Fig. 1 h). Head. Head triangular, widest across temples (Fig. 2 h). Male gula with round depression bearing dense setae (Fig. 2 s: arrow). Female head unmodified. Antennomeres 1–2 elongate, 3–8 subquadrate, 9–10 weakly transverse. Frontal sulcus shallow and reaching front point of eye (Fig. 2 h). Posterior frontal fovea present and oval. Eye large and prominent, one-half length of temple (Fig. 2 h). Thorax. Prosternum as long as wide, widest at one-third length. Elytra rectangular (Fig. 1 h). Hind wings of both sexes well-developed. Meso- and metaventrites together trapezoidal in ventral view, longer than wide. Abdomen. Abdominal tergite IV with a pair of oval or transverse patches of microtrichia. Aedeagus. Apical lobe triangular (Fig. 3 h). Phallobase symmetrical and rounded (Fig. 3 h). Parameres symmetrical, emarginate at distal one-third with setae at tip (Fig. 3 h).

Distribution. Auckland (AK), Coromandel (CL), Wellington (WN) (Fig. 5: black squares).

Habitat. Specimens of this species were collected using malaise traps, or by sifting leaf and wood litter.