Caledomina dorsospina Johanson 2017, sp. nov.
Creators: name: Johanson, Kjell Arne
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Ecnomidae
Caledomina
Caledomina dorsospina

description: 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).
description: Published as part of Johanson, Kjell Arne, 2017, Description of three new species of Caledomina (Insecta, Trichoptera, Ecnomidae) from New Caledonia, pp. 1-12 in European Journal of Taxonomy 352 on page 4, DOI: 10.5852/ejt.2017.352, http://zenodo.org/record/3836261