Description of three new species of Caledomina (Insecta, Trichoptera, Ecnomidae) from New Caledonia Author Johanson, Kjell Arne text European Journal of Taxonomy 2017 2017-09-22 352 1 12 journal article 21994 10.5852/ejt.2017.352 7fc7ebcb-2981-4a44-820c-1d8a47569a60 2118-9773 3836261 6328E049-24F3-42BE-A405-A79BF2F16EA8 Caledomina dorsospina sp. nov. urn:lsid:zoobank.org:act: 147FDE5A-A7A6-4422-B30F-363F5BFAFBE5 Figs 6–10 , 16–17 , 19 GS8 Caledomina sp. 3 – Espeland & Johanson 2010: 2116 . Diagnosis Caledomina dorsospina is distinguished from other species in the genus by the absence of a prominent sternal process of sternite IX, the dorsal branch of the superior appendages is oriented dorsally, and the ventral branch of the superior appendages is drop-shaped. Etymology Dorsospina , after the presence of a prominent dorsally oriented megaseta on each superior appendage. Type material Holotype NEW CALEDONIA : ♂ , Province Sud , 1.0 km NW of Pont des Japonais , on road between Noumea and Yaté , 22°11.421' S , 166°42.840' E , 114 m , loc #038, Malaise trap , 22 Nov.–4 Dec. 2003 , Johanson leg. ( MNHN , DNA voucher: NHRS-GS8 ). Description WINGS. Fore wing length 3.0 mm, hind wing length 2.3 mm . GENITALIA. Total length about 0.6 mm . Segment IX divided into pair of strong, antero-dorsally pointed ridges in lateral view ( Fig. 6 ); sternite IX originating from anterior ridge below mid-height; anteriorly membranous, gradually more sclerotized posteriorly, posteriorly forming pair of nearly rectangular plates without postero-dorsal sternal process ( Fig. 6 ); with ventral and lateral setae. Tergite IX almost U-shaped in lateral view ( Fig. 6 ), anterodorsal corners strongly curving anterad and strongly pointed at apex; with long, strong setae in lateral row; in dorsal view ( Fig. 7 ) with anterior-most part fused mesally; posterior part fused into superior appendages. Tergite X not visible ( Fig. 6 ). Superior appendages very large; each divided into posterior dorsal and ventral lobes ( Fig. 6 ), with setae basally of bifurcation ( Figs 6–7 ). Dorsal lobes each with pair of very large megasetae, one at each apex and one sub-apically; mesal, finger-like branches present ventrally of megasetae, with sharp setae at each apex ( Figs 6–7 ). Ventral lobes large, oval, oriented posterad, each with lateral face covered by large setae; mesal face with straight spines oriented mesally; ventral margin with minute setae; ventral branch strongly exceeding dorsal lobe posteriorly ( Fig. 6 ). Inferior appendages completely fused into small, mesal process, connected to central part of sternite IX by well defined sclerotized ridges; dorsal margin smoothly sigmoid; ventral margin convex; apex long, narrow in lateral view ( Fig. 6 ); in ventral view ( Fig. 8 ) with broad basis; narrowing stepwise, apex smooth, bifurcated. Phallic apparatus without processes ( Figs 9–10 ); tubeshaped; posterior two-thirds about twice as thick as anterior part in lateral view ( Fig. 9 ); posterior apex membranous, with minute setae at dorsal membrane. Remarks This species was referred to as “GS8 Caledomina sp. 3” in Espeland & Johanson (2010) .