Caledonotrichia minor 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 : 73-75

Caledonotrichia minor Sykora Figs 538 –4046– 47

Caledonotrichia minor Sykora (1967: 585-595); Wells (1995: 230).

Revised diagnosis.

Males of Caledonotrichia minor share with those of Caledonotrichia charadra , Caledonotrichia capensis sp. n. and Caledonotrichia ouinnica sp. n. the presence of androconia on the forewing only (Fig. 5), and are distinguished from these species by the size of the single patch of scales, which forms a small dark area proximally, though larger than the tiny black spot of Caledonotrichia ouinnica , whereas Caledonotrichia charadra and Caledonotrichia capensis sp. n. have large areas; in the male genitalia (Figs 38-40, 46-47), as in Caledonotrichia charadra and Caledonotrichia capensis , the ventral lobes of the gonopods in ventral view are triangular, but the sclerotised rods of the ventral processes are bilobed and broadly flared apically (arrow in Fig. 39), whereas the other two species have just a small subapical irregularity. The forewing of Caledonotrichia minor is not as slender as that of Caledonotrichia ouinnica , which tapers to an acute apex.

Revised description, male.

Male head rounded as in Caledonotrichia capensis sp. n. (Fig. 1).

Antennae with 24-28 flagellomeres (n=5); flagellomeres elongate cylindrical. Maxillary palps with basal 2 segments short and rounded, rest cylindrical: segment 3 about 3 × maximum width, segment 4 length about 2 × width, and 5 elongate slender, length almost 6 × width. Forewing (Fig. 5) length, 1.6-2.1 mm (n=5); small patch of slender scales medially at about one third length, some upright bristles on veins, costal margin hairs straight.

Material examined.

Holotype, male: New Caledonia: River near Col d’Amieu (BPBM) (examined).

Other material examined:

New Caledonia: 1 male, Nékliai River, 5 km above Mission Station [near Poya], 10.viii.1965, F. Starmühlner (ROM); 1 pharate male pupa, larvae, Nerihouen River, St Ives, Reg. Ponérihouen, 27.viii. 1965, F. Starmühlner (ROM); 30 males, 7 females, Ouenghi River nr Boulouparis, 14.xii.1983, A. Wells (ANIC); 13 males, 8 females, same locality, 19.xii.1983, A. Wells (ANIC); 34 males, 7 females, Bopope, 18.xii.1983, A. Wells (ANIC); 28 males, ~10 km NW Hienghène, small stream, 25.xii.1998, A. Wells (ANIC); 2 males (on slides), Prov. Sud, Sarraméa, 220 m, forest stream, loc 10 21°37.883'S 165°51.958'E, Malaise trap, 18-21.xi.2001, Johanson, Pape & Viklund (NHRS).

Remarks.

The mature larva illustrated by Wells (1995: 226, fig. 2) is typically stactobiine, its case a round dome that is attached to the rock surface.