Oxyethira (Dampfitrichia) incana Ulmer

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 : 67-68

Taxon classification Animalia Trichoptera Hydroptilidae

Oxyethira (Dampfitrichia) incana Ulmer Figs 70, 71, 110

Oxyethira incana Ulmer, 1906: 102 (see Morse 2015 for full synonymy)

Diagnosis.

Males of this species are distinguished from others in the New Caledonian fauna by abdominal segment VIII with disto-lateral angles spiny, and venter produced and rounded distally not excised apico-ventrally, forming a shield over other genital structures which are strongly fused; and by phallic apparatus curiously stout and medially curved, lacking a titillator. Female terminalia longer and terminally more slender than those of caledoniensis group species, but not as slender as in members of subgenus Pacificotrichia , with sternite X bearing a jet black quadrate plate.

Antennae: males 25-28 flagellomeres, flagellomeres about twice as long as wide; female 20-21 flagellomeres, flagellomeres subquadrate in profile. Anterior wing length: males 1.8-2.2 mm (n=10); females 1.8-2.4 mm (n=10). Spurs 0,3,4. Abdominal sternite VII without median spine.

Material examined.

Numerous males, females, Province Nord, Amoa River, 23 m, loc 20, 12 km W Poindimié, 22°58.092'S, 165°11.804'E, light trap, 26.xi.2001, leg. K.A. Johanson, T. Pape & B. Viklund (NHRS, ANIC); 2 males, 2 females, Province Nord, 50 m upstream bridge on Hienghène–Tnèdo road, 3.9 km S summit of Mt Tnèda, 2.2 km E Tnèdo, 20°43.085'S, 164°49.928'E, 29 m, 7.xii.2003, light trap, loc#071, leg. K.A. Johanson (NHRS); numerous males, females, Province Nord, 1 m upstream road, below waterfall on Hienghène–Tnèdo road, 2.2 km SSW summit of Mt Unpac, 4.9 km ESE Tnèdo, 20.73879°S, 164.85508°E, 7.xii.2003, light trap, loc#072, leg. K.A. Johanson (NHRM); 3 males, 6 females, Province Nord, stream in Creek de Bambou, 5 m N road RT7 Ouégoa–Koumac, 20°27.863'S, 164°19.784'E, 58 m, 19.xii.2003, Malaise trap, loc#087, leg. K.A. Johanson (NHRS); numerous males, females, Province Nord, Bouérabate Stream, S Mont Ninndo, along road Barabache–Boulagoma, 20°17.409'S, 164°11.242'E, 60 m, 19.xii.2003-7.i.2004, Malaise trap, loc#089, leg. K.A. Johanson; 2 males, 4 females, Province Nord, Rivière Néhoué, camp Amenage de Néhoué, 20°25.037'S, 164°13.222'E, 12 m, 19.xii.2003, light trap, loc#090, leg. K.A. Johanson (NHRS); numerous males, females, Province Nord, Héémwâ Pwei River, 50 m upstream bridge on Touho–Hienghene road, 1.0 km N Paola, 20.76512°S, 165.10979°E, 22.xii.2003, light trap, loc#095, leg. K.A. Johanson (NHRM); 3 male, 6 females, Province Nord, Ponandou Tiôgé River at Kögi, 3.9 km SSW Touho, 20°49.043'S, 165°13.551'E, 25 m, 26.xii.2003, light trap, loc#100, leg. K.A. Johanson (NHRS).

Remarks.

In New Caledonia this species was taken only in the northern province (Fig. 110); elsewhere it is widespread from Java, through South-East Asia to New Guinea and northern Australia.