Hydroptila losida Mosely

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 : 70-72

Taxon classification Animalia Trichoptera Hydroptilidae

Hydroptila losida Mosely Fig. 112

Hydroptila losida Mosely, 1953: 505; Wells 1978 [1979]: 757, figs 35-38; Wells 1995: 231.

Diagnosis.

The only Hydroptila species among New Caledonian micro-caddisflies, Hydroptila losida is recognised by the absence of ocelli on the dorsal head, and tibial spur count of 0,2,4; and in the male by gonopods well developed, in ventral view elongate divergent rods, each with a pair of dark spurs distally, in lateral view, club-shaped; and phallic apparatus slender, distally comprising a slender, tapered spine adpressed to the section containing the ejaculatory duct, or in some specimens these two parts are separated and divergent; and in the female by the triangular shape of sternite VIII with the two small triangular sclerotised areas laterally at about half length of the sternite.

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); 6 females, Province Sud, Col d’Amieu, 323 m, small stony river, loc 24, 21°34.844'S, 165°49.677'E, Malaise trap, 30. xi– 5.xii.2001, leg. K.A. Johanson, T. Pape & B. Viklund(NHRS); numerous males, females, Province Nord, 2.8 km ENE Bopope, Rivière Oua Mendiou, 100 m S RPN2 Koné–Poindimié, 20°54.455'S, 165°06.300'E, 78 m, 14.i.2003, light trap, loc#119, leg. K.A. Johanson (NHRS); numerous males, females, Province Sud, Dumbea river, Branche sud, 22°08.344'S, 166°30.147'E, 42 m, 03.xi.2003, light trap, loc#006, leg. K.A. Johanson (NHRS); 3 males, 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); numerous males, females, Province Sud, Monts Kwa Ne Mwa, on road between Noumea and Yaté, 2.0 km E Pic Mouirange, 22°12.356'S, 166°40.798'E, 220 m, 7-16.xi.2003, Malaise trap, loc#014, leg. K.A. Johanson (NHRS); 4 males, 12 females, Province Sud, Sarraméa, 220 m, forest stream, loc 10, 21°37.883'S 165°51.958'E, Malaise trap, 18-21.xi.2001, Leg. K.A. Johanson, T. Pape & B. Viklund; 1 male, 6 females, Province Sud, Sarraméa, 2907 m, stony forest stream, loc 13 21°37.097'S 165°49.351'E, Malaise trap, 18-21.xi.2001, Leg. K.A. Johanson, T. Pape & B. Viklund (RHNS); 1 male, 2 females, Province Sud, Mt Dzumac, source stream of Ouinne River, near crosspoint to mountain track, 22°02.439'S, 166°28.646'E, 805 m, 18. xi– 4.xii.2003, Malaise trap, loc#029, leg. K.A. Johanson (NHRS); numerous males, females, Province Sud, Tamoa River, 700m S road RT1 between Noumea and La Foa, 22°04.518'S, 166°16.592'E, 19.xi.2003, light trap, loc#033, leg. K.A. Johanson (NHRS); numerous males, females, Province Sud, Hwa Hace Mtn, Hwa Motu River, at Pont Wamuttu, 1.0 km E Nassirah, about 200 m upstream bridge, 21°48.094'S, 166°04.298'E, 137 m, 20. xi– 12.xii.2003, Malaise trap, loc#034, leg. K.A. Johanson (NHRS); 2 males, 8 females, New Caledonia, Province Sud, stream at Refuge de Farino, 4.0 km W Grand Couli village, 21°38.934'S, 165°46.845'E, 260 m, 25.xi.2003, light trap, loc#044, leg. K.A. Johanson (NHRS); 30 males, Province Sud, St. Vincent, Bongou Stream, at bridge on road to Tribu de Bangou, 700 m N RT1 Noumea–Tontoutu road, 22°03.477'S, 166°15.718'E, 26.xi.2003, light trap, loc#050, leg. K.A. Johanson (NHRS); numerous males, females, Province Sud, Couvelée River at Haute Couvelée, 2.8 km SV summit of Mt Piditéré, 3.5 km NNE Dumbéa, 22°07.405'S, 166°28.023'E, 27 m, 28.xi.2003, light trap, loc#052, leg. K.A. Johanson (NHRS); 3 females, Province Sud, W slope Mt Ningua, Kwé Néco, Stream, at Camp Jacob, 3.7 km WNW summit of Mt Ningua, on Boulouparis–Thio Road, about 50 m upstream road, 21°43.613'S, 166°06.567'E, 150 m, 29. xi– 12.xii.2003, Malaise trap, loc#054, leg. K.A. Johanson (NHRS); 4 males, 12 females, Province Sud, lower part of Dumbea River, 1.0 km SSW bridge over Dumbea River at Dumbea, 22°09.750'S, 166° 26.700'E, 0.5 m, 30.xi.2003, light trap, loc#058, leg. K.A. Johanson (NHRS); 1 male, 6 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); 6 males, 4 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, 0.73879°S, 164.85508°E, 7.xii.2003, light trap, loc#072, leg. K.A. Johanson (NHRS); 1 male, 3 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); 3 males, 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 (NHRS); numerous males, 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, Rivière Néhoué, camp Amenage de Néhoué, 20°25.015'S, 164°13.245'E, 12 m, 19.xii.2003, light trap, loc#091, 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 (NHRS); numerous males, 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); males, females, Province Nord, Plaine des Gaïacs, Rivière Rouge, 14.2 km NW summit of Mt Rouge, 50 m upstream road RT1 Noumea–Koné, 21°31.573'S, 164°46.690'E, 23 m, 2.i.2004, light trap, loc#104, leg. K.A. Johanson (NHRS); 1 male, Province Sud, Creek Froid, 10 m upstream bridge on La Foa–Koindé road, 200 m W crossroad to Ouipouin, 21°38.581'S, 165°56.672'E, 180 m, 4.i.2004, light trap, loc#105, leg. K.A. Johanson (NHRS); 3 males, Province Sud, Fö Néchédeva stream, 2 m upstream bridge on La Foa–Koindé road, 21°38.812'S, 165°56.076'E, 124 m, 4.i.2004, light trap, loc#106, leg. K.A. Johanson (NHRS); numerous males, females, Province Nord, Etnbl. thermal de la Crouen, along Riv. la Crouen, 30 m upstream road RM3, 21°32.105'S, 165°53.319'E, 15 m, 5.i.2004, Malaise trap, loc#110, leg. K.A. Johanson (NHRS); 1 male, 5 females, Province Sud, Xwê Dachava Stream, Rembai Mtn, 21°34.854'S, 165°49.478'E, 317 m, 5-12.i.2004, Malaise trap, loc#108, leg. K.A. Johanson (NHRS); 11 males, Province Sud, Col d’Amieu, Xwé Ko River, on road to St. Forestière, 21°35.612'S, 165° 48.241'E, 368 m, 8.i.2004, light trap, loc#114, leg. K.A. Johanson (NHRS); numerous males, females, Province Sud, Sarraméa, Xwê Wya River, 21°38.318'S, 165°51.582'E, 127 m, 17-18.i.2004, light trap, loc#121, leg. K.A. Johanson (NHRS); 2 males, numerous females, Province Sud, artificial lake 2.6 km S summit of Mt Mè Tu Novia, about 400 m N Pocquereux River, 7.4 km E La Foa, 21°43.859'S, 165°54.034'E, 28 m, 19.i.2004, light trap, loc#123, leg. K.A. Johanson (NHRS).

Remarks.

In New Caledonia Hydroptila losida is abundant and widespread across the island (Fig. 112). A similar wide distribution is true of this species in eastern Australia where it is common throughout the wetter coastal regions, including the south-west and Tasmania, but not the far north of the continent.