Cheumatopsyche timgulile 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 : 102

Cheumatopsyche timgulile Oláh & Johanson , new species

Fig. 249–252

This species is similar to C. fahara , new species and is distinguished by the dorsal interlobular gap that is small, shallow and narrow; the harpagones being more complex and involving broad bases, narrow central parts, and posterad curving apices, each with 2 digitate processes.

Male. Body and wings pale brown with brown pubescence; wing unicolorous without spots or 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 brown with 7 similarly coloured warts. Proepisternum without swollen setal wart. Each protibiae with 2 spurs. Protarsal claws asymmetrical, laterally flanked by setal bundle. Forewing length 5.2 mm, hind wing length 3.9 mm. Forewing crossveins m-cu and cu forming continuous line. Hind wing fork I absent.

Male genitalia. Segment IX fused annularly; tergum narrowing into pointing tip in lateral view ( Fig. 249), representing apicolateral corner of segment IX; sternum longer than tergum ( Fig. 249); anterior margins of segment IX almost semicircular; apical lobe on posterolateral margins forming blunt, nearly triangular, long lobe above base of coxopodites; spine row on posterior margins of segment IX complete; dorsal spines located on pair of setose protuberances visible on dorsal base of segment X ( Fig. 250), well separate from dorsum IX immediately behind apicolateral corner. Intersegmental step between segment IX and segment X shallow. Segment X long. Apicoventral setal lobes long; fused to segment X along their length, except at apices; nearly straight, orienting posterodorsad; apices rounded in lateral view ( Fig. 249); almost touching mesally in dorsal view ( Fig. 250); nearly closing narrow, dorsal interlobular gap. Lateral interlobular gaps absent. Setaless mesocaudal lobe small; apical margin concave, forming base of dorsal interlobular gap ( Fig. 250). Lateral setal areas elevated; slightly elongating into warts located centrally on segment X. Transverse sutures not visible. Longitudinal sutures present. Coxopodites slender, gradually broadening apically; slightly exceeding apex of segment X; in ventral view ( Fig. 251) narrowest before mid-length. Harpagones with broad bases ( Fig. 249); narrowing strongly at mid-length before dividing into pair of small, dorsomesad curving apical processes. Phallotheca ( Fig. 252) with small phallobase narrowing towards distal two-thirds; with ventral keel present at distal one-third; sclerotised endothecal process circular, completely covering phallothecal apex; phallotremal sclerites narrow, semicircular; vestigial ventral endothecal membranous lobe not visible.

Holotype male: MADAGASCAR: Ampangalambosy , x.1957 [P. Soga] ( MNHN, in alcohol).

Paratype: MADAGASCAR: Est det Sambava Reserve nat. XII, Marojejy-Andrakata, xi.1959 [P. Soga] — 1 male ( OPC, alcohol) .

Distribution: Madagascar.

Etymology: after the 2-branched, digitate apices of the harpagones, two fingers “timgulile” in Sanscrit.