Caledonotrichia illiesi Sykora

Wells, Alice, Johanson, Kjell Arne & Mary-Sasal, Nathalie, 2013, The New Caledonian genus Caledonotrichia Sykora (Trichoptera, Insecta) reviewed, with descriptions of 6 new species, ZooKeys 287, pp. 59-89 : 63

Caledonotrichia illiesi Sykora Figs 202230-3271

Caledonotrichia illiesi Sykora (1967: 585-595); Wells (1995: 229).

Revised diagnosis.

In many respects males of Caledonotrichia illiesi resemble the smaller Caledonotrichia minuta sp. n., and Caledonotrichia bifida sp. n., having wings without scales and both lobes of gonopods are rounded, but are readily recognized by their large size, more robust in appearance, have thick brushes of short black setae dorsally on head and have elongate antennae about equal in length to body. In the male genitalia (Figs 21-22, 30-32) the subgenital process forms simple, straight sclerotised rods, and the elongate seta in the axil between the upper and lower lobes of each gonopod terminates in a round apical knob (arrow in Figs 21, 22). In the female terminalia (Fig. 71) abdominal sternite VII has a triangular prominence apico-medially, and a membranous collar; segment X is triangular.

Revised description, male.

Head rounded in dorsal view, as in Caledonotrichia capensis sp. n. (Fig. 1). Antennae with 35-37 flagellomeres; flagellomeres (Fig. 20) elongate cylindrical, length about 2 × width. Maxillary palps with basal 2 segments short and rounded, rest cylindrical: segment 3 about 4 × maximum width, segment 4 length about 2 × width, and segment 5 elongate slender, length almost 6n width. Forewing length, 2.1-3.0 mm (n=10). Wings without scales, forewing costa with brush of straight setae on proximal third, then longer, curved setae to tip of wing.

Additional information, female.

Antennae with 33 flagellomeres. Forewing length, 2.0-3.2 mm (n=10).

Material examined.

Holotype male: New Caledonia: River near Col d’Amieu (BPBM), examined. 1 pharate male pupa, upper Hienghène R. at Kavatch, 6.ix.1965, F. Starmühlner (ROM); 1 pharate male pupa, tributary Hienghène R. at Castex Station 5 km below Kavatch, 6.viii.1965, F. Starmühlner (ROM); 1 male, creek at end of Col de Petchékara, 19.xii.1983, A. Wells (ANIC); 3 males, larvae and pupae, Bopope, 18.xii.1983, A. Wells, ANIC; 1 larva, Ck between Négropa and Koh on La Foa-Canal Road, 19.xii.1983,A. Wells (ANIC); 2 males, Forêt Thy Reserve, 150 m, 21.v.1984, G. Monteith, D. Cook, QM; 2 males, 1 female, stream beside Farino road, 20.xii.1998, A. Wells, ANIC; 2 males, approx 15 km SW of Houailou on Houailou-Bourail road, small fall, 26.xii.1998, A. Wells (ANIC); 3 males, ~10 km NW Hienghène, small stream, 25.xii.1998, A. Wells (ANIC); 4 males, 2 females Rivière du Cap, Pont du Cap, ~8 km NW Naindai on Bourail-Poya road, 22.xii.1998, A. Wells (ANIC); 11 males, 12 females, stream approx. 20 km SW Thio on Boulouparis-Thio road, 28.xii. 1998, A. Wells (ANIC); 2 males, UFP-LERVEM, Tay 2, 18.x.1999, N. Mary (ANIC); 24 males, 17 females, Province Sud, Monts Kwa Ne Mwa, on road between Noumea and Yaté, Rivière des Pirogues, 22°11.225'S, 166°43.338'E, 100 m, 7.xi.2003, light trap, loc#016, K. A. Johanson (NHRS); numerous males & females, 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, K. A. Johanson (NHRS); 15 males, 8 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, K. A. Johanson (NHRS); 7 males, 4 females, Province Sud, Mt. Dzumac, source stream of Ouinne River, near crosspoint to mountain track, 22°02.073'S, 166°28.460'E, 810 m, 18. xi– 4.xii.2003, Malaise trap, loc#030, K. A. Johanson (NHRS); 1 male, on slide, Province Sud, Mt. Dzumac, source stream of Ouinne River, downstream crosspoint to mountain track, 22°01.997'S, 166°28.486'E, 795 m, over about 30 m waterfall, 18. xi– 4.xii.2003, Malaise trap, loc#031, K. A. Johanson (NHRS); 13 males, 8 females, Province Sud, W slope Mt. Ningua, Kwé Néco Stream, at Camp Jacob, 3.9 km W summit of Mt. Ningua, on Boulouparis–Thio Road, about 50 m upstream road, 21°44.083'S, 166°06.298'E, 117 m, 29. xi– 12.xii.2003, Malaise trap, loc#053, K. A. Johanson (NHRS); numerous males, females, Province Sud, W slope Mt. Ningua, Kwé Néco Stream, 3.9 km W summit of Mt. Ningua, on Boulouparis–Thio Road, about 50 m upstream road, 21°44.359'S, 166°06.009'E, 117 m, 20. xi– 12.xii.2003, Malaise trap, loc#035, K. A. Johanson (NHRS); males, 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, K. A. Johanson (NHRS); 6 males, Province Sud, Mt Rembai, River Xwâ Be, upstream bridge on road Sarraméa-Koh, 21°33.877'S, 165°49.922'E, loc 157F-k, Malaise trap, 8. vii– 4.viii.2007, R. Pöllabauer (NHRS); 6 males, loc 157 F-K, 8. vii– 4.viii.2007; 1 male, New Caledonia, Chute S of Col d’Amieu on Sarraméa-Thio road, 2.iv.2012, A. Wells & S. Cazères (ANIC); 7 males, 1 female, Chute de Farina, ~5 km N of Farino, 15.iv.2012, A. Wells (ANIC).