Cheumatopsyche sambava Oláh & Johanson, 2008

Oláh, János, Johanson, Kjell Arne & Barnard, Peter C., 2008, Revision of the Oriental and Afrotropical species of Cheumatopsyche Wallengren (Hydropsychidae, Trichoptera), Zootaxa 1738, pp. 1-171 : 77-80

Cheumatopsyche sambava Oláh & Johanson , new species

Fig. 191–194

This species is similar to C. ampanga new species, from which it is easily distinguished by its smaller size and the forewings withou pattern. Segment IX and dorsocaudal spiny lobe are both shorter, and apices of the apicoventral lobes are characteristically recurved mesad in dorsal view, and recurved dorsad in lateral view. The

harpagones are not sigmoid, but are nearly straight, with broad bases in ventral view; and the phallotheca is constricted at mid-length.

Male. Body and wing membrane brown with light pubescence; wing without pattern. Maxillary palp segment I shortest, segment II longer, segments III and IV equally long, segment V as long as sum of segments I– IV. Head dorsum dark brown, with 5 warts of same dark colour. Swollen setal wart absent on proepisternum. Protarsal claws asymmetrical, laterally flanked by setal bundle. Each protibiae with 2 spurs. Forewing length 4.1 mm, hind wing length 3.4 mm. Forewing crossveins m-cu and cu almost touching. Hind wing fork I absent.

Male genitalia. Segment IX fused annularly, generally short; tergum about one-third as long as sternum ( Fig. 191); anterior margins of segment IX regularly convex in lateral view, tergal part less excised, flatter than sternal; anterosternal margin produced anterad opposite to base of coxopodites ( Fig. 191); apical lobe on posterolateral margins broadly triangular, short, located well above coxopodite bases, about at mid-height of segment; spine row on posterior margins of segment IX interrupted between dorsocaudal spiny lobe and apical lobe ( Fig. 191). Intersegmental area between segment IX and segment X deeply stepped. Segment X relatively short, with tuboid apicoventral setal lobes bending dorsad in lateral view ( Fig. 191); curving mesad in dorsal view ( Fig. 192); lobes widely separated in dorsal view ( Fig. 192). Transverse sutures crossing central part of segment X ( Fig. 191). Longitudinal sutures not visible. Setaless mesocaudal lobe forming nearly mar- ginally straight plate in dorsal view ( Fig. 192). Pair of lateral setose areas forming elevated warts, located well beyond transverse sutures at base of apicoventral setal lobes. Coxopodites exceeding beyond apex of segment X, almost straight, with dilated apex. Harpagones slender, finger-like, curving dorsad in lateral view ( Fig. 191); bases broad in ventral view ( Fig. 193). Phallotheca ( Fig. 194) strongly constricted at mid-length; sclerotised endothecal process elongate; phallotremal sclerites small, oval.

Holotype male: MADAGASCAR: Est de Sambava Reserve nat. XII, Marojejy-Andrakata, xi.1959 [P. Soga] ( MNHN, in alcohol).

Distribution: Madagascar.

Etymology: from the name of the type locality.