Caledonotrichia 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 : 62-63

Caledonotrichia Sykora

Caledonotrichia Sykora (1967: 585); Marshall (1979: 221); Kelley (1989: 194); Wells (1995: 224).

Type species.

Caledonotrichia illiesi Sykora, by original designation.

Revised description, male.

Head wider than long, in dorsal view variably rounded to subrectangular; 3 ocelli present; antennae with 22-37 flagellomeres in male, 20-24 flagellomeres in female; tentorium complete, posterior bridge well developed, dorsal arms vestigial; maxillary palps with 2 basal and fourth segments short, other segments elongate; clypeus bearing a dense brush of setae. Forewing length 1.0-3.5 mm, broad to narrowly acuminate, with or without patches of specialised scent scales (androconial scales); jugal lobe present; hind wing with or without scales; venation of both wings modified to a greater or lesser extent, width of wings variable, generally slender with apices acuminate. On thorax, mesoscutellum with transverse suture; metascutellum triangular. Tibial spur formula 0,3,4. Female terminalia forming slender, elongate oviscapt. Male genitalia with abdominal segment IX well developed, broadly to narrowly shield-shaped, or triangular in ventral view and triangular in lateral view. Tergite X membranous, short, longer than wide. Gonopods bilobed, dorsal lobe irregularly elongate, subquadrate to rectangular or rounded, usually longer than ventral lobe, usually bearing a digitiform mesal process, ventral lobe triangular to bean-shaped, or narrowly leaf-shaped; in axil between dorsal and ventral lobe usually a small, rounded, setate process and basally on ventral lobe, a strong elongate seta. Subgenital processes (or plate) in form of pair of sclerotised rods which, in lateral aspect, strongly sinuate. Phallic apparatus elongate, with or without associated parameres.

Larva.

Diagnoses are given for larvae by Marshall (1979) and Wells (1995: 228). Mature larvae are basically plesiomorphic, with or without dorsal abdominal sclerites; cases highly variable in shape and materials.