Cheumatopsyche padaha 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 : 111-113

Cheumatopsyche padaha Oláh & Johanson , new species

Fig. 271–273

This species is similar to C. vacoana , new species but the bifid harpagone apices are different from those of C. vacoana in that the ventral branches are strongly reduced. The setose area dorsobasally on segment X is present as a central ridge with a triangular elevation in lateral view. The most striking character is the absence of setal bundle at the symmetrical protarsal claws, which is present in all similar species.

Male. Body and wings brown with brown pubescence; wings without spots. 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 brown with 7 similarly coloured warts. Antennae 1.2 times longer than forewings. Proepisternum without swollen setal wart. Protarsal claws symmetrical, without laterally flanked setal bundle. Forewing length 7.8 mm, hind wing length 6.0 mm. Distance between forewing crossveins m-cu and cu about half as long as length of crossvein m-cu (holotype) and as long as crossvein m-cu (paratype). Hind wing fork I present.

Male genitalia. Segment IX fused annularly; sternum longer than tergum ( Fig. 271); anterior margins of segment IX symmetrically rounded; apical lobe on posterolateral margins small, triangular, located immediately above articulation cavity of coxopodites; spine row on posterior margins of segment IX complete, all spines similar. Intersegmental step between segment IX and segment X sloping. Segment X long, curving dorsad, gradually narrowing from mid-length in lateral view ( Fig. 271); simple, tongue-shaped in dorsal view. Apicoventral setal lobes completely fused with segment X, shape recognized by its setae. Setaless mesocaudal lobe completely reduced; dorsal interlobular gap narrow, deep ( Fig. 272); single setose area present on dorsobasal part of segment X, ridge-like and triangular in lateral view ( Fig. 271). Transverse sutures present basally on segment X. Longitudinal sutures present along ventral margin of segment X, merging with lower part of transverse sutures ( Fig. 271). Lateral setose areas forming pair of elevated, vertically elongating warts centrally on segment X ( Fig. 271). Coxopodites robust; basalmost part slender, broadening from basal one-sixth; slightly exceeding apex of segment X. Harpagones with bilobed apices, dorsal branch reduced to straight, very slender filament; ventral branch strongly reduced. Phallotheca ( Fig. 273) with broad phallobase and slen- der central part, gradually narrowing distally; sclerotised endothecal process circular, curving ventrad in holotype, not so in paratypes; phallotremal sclerites large, broad in lateral view.

Holotype male: MADAGASCAR: Manjakatompo , i.1956 [R. Paulian] ( MNHN, in alcohol).

Paratypes: same data as holotype, except — 4 males ( MNHN, in alcohol) 1 male ( OPC, in alcohol); MADAGASCAR: Ankaratra , at highest point on road, i.1956 [B. Stuckenbaerg & R. Paulian] ( MNHN, OPC) .

Distribution: Madagascar.

Etymology: from the name of the type locality.