Oxyethira (Pacificotrichia) scutica Kelley

Wells, Alice & Johanson, Kjell Arne, 2015, Review of New Caledonian species of Oxyethira Eaton, with description of 17 new species, and new records for Hydroptila Dalman and Hellyethira Neboiss (Trichoptera, Hydroptilidae), ZooKeys 530, pp. 37-90 : 63-65

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).