Taxon classification Animalia Trichoptera Hydroptilidae

Oxyethira (Pacificotrichia) scutica Kelley Figs 61-63, 107

Oxyethira scutica Kelley, 1989: 200, figs 39, 47, 52, 53, 61.

Diagnosis.

Males superficially resemble those of Oxyethira enigmatica, having a long apical process on the phallic apparatus, antennae with 23-25 flagellomeres, and spur formula of 0,2,4, but are distinguished by apical process on phallic apparatus longer and thread-or whip-like in appearance, rather than strap-like as in Oxyethira enigmatica, and abdominal segment VIII with distal margin of venter of deeply and narrowly excised, compared with shallowly excavated margin of Oxyethira enigmatica . Females resemble those of Oxyethira oropedion (Kelley 1989: figs 50, 51, both having abdominal terminalia in form of a slender oviscapt and cerci slender, elongate, about length of segment X, but females of Oxyethira scutica lack the darkly sclerotised area on the venter of segment IX (Kelley 1989: figs 52, 53).

Antennae: male with 21-24 flagellomeres, flagellomeres subquadrate in profile, without sensilla placodea; female with 18 flagellomeres. Fore wing length: male 1.1-1.5 mm (n=8), female 1.4 mm (n=2). Spurs 0,2,4. Abdominal sternite VII with sharp median spur.

Material examined.

Holotype. Male, New Caledonia, mountain stream up Boulari River, (BPBM). Other material. 1 male (on slide), Province Sud, Ouenghi River, Boulouparis, 19.xii,1983, A Wells, (ANIC); 1 male (on slide), Province Sud, side stream to Rivière Blanche, 10.75 km SW Pont Pérignon, 22°10.073'S, 166°39.903'E, 180 m, 6-16.xi.2003, Malaise trap, loc#012, leg. K.A. Johanson (NHRS); 7 males, Province Sud, Monts Kwa Ne Mwa, on road between Noumea and Yaté, 1.5 km E Pic Mouirange, 22°12.545'S, 166°40.246'E, 143 m, 9.xi.2003, light trap, loc#018, leg. K.A. Johanson (NHRS); 2 males, Province Sud, Mt Dzumac, source stream of Ouinne River, at crosspoint to mountain track, 22°02.218'S, 166°28.566'E, 797 m, 18.xi.2003, light trap, loc#032, leg. K.A. Johanson (NHRS); 1 male, 1 female, Province Sud, on road between Noumea and Yaté, 1.0 km NW Pont des Japonais, 22°11.427'S, 166°42.868'E, 113 m, 22. xi– 4.xii.2003, Malaise trap, loc#039, leg. K.A. Johanson (NHRS); 2 male, 1 female, Province Sud, lower part Rivière des Pirogues, 800 m WNW summit of Mont Imbaah, 4.7 km E Lucky Creek in Plum, 22°18.559'S, 166°41.227'E, 1.3 m, 01.xii.2003, light trap, loc#059, leg. K.A. Johanson (NHRS); 10 males, Province Sud, stream draining to Rivière des Pirogues, 850 m E summit of Mont Imbaah, 5.5 km E Lucky Creek in Plum, 22°16.837'S, 166°42.195'E, 31 m, 01.xii.2003, light trap, loc#060, leg. K.A. Johanson (NHRS).

Remarks.

This appears to be another southern species (Fig. 107).