Cheumatopsyche abhugna Oláh & Barnard, 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 : 80-82

Cheumatopsyche abhugna Oláh & Barnard , new species

Fig. 195–199

This species is morphologically close to C. capronita Malicky from Sulawesi, and is distinguished from that species in the setaless mesocaudal lobe on segment X that is situated lower on segment X; and in the apicoventral setal lobes that are longer and slightly directed mesad. The ventral lobe of both harpagones is shorter and more strongly curved into a half circle.

Male. Body and wings brown with brown pubescence. 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 9 similarly coloured warts. Proepisternum without swollen setal wart. Protarsal claws asymmetrical, laterally flanked by setal bundle. Forewing length 9.0 mm, hind wing length 6.0 mm. Hind wing fork I present.

Male genitalia. Segment IX fused annularly; tergum short, sternum longer ( Fig. 195); anterior margins of segment IX convex, slightly expanding ventrad in lateral view; apical lobe on posterolateral margins rounded, located above rounded marginal incision anteriorly of coxopodites; posterior spine row incomplete, with short hiatus separating very long and stiff spines on tergal corner from posterolateral part of posterior spine row. Intersegmental step between segment IX and segment X formed by downward slope of segment X. Segment X long, narrowly triangular ( Fig. 195); apex formed by posterodorsad apicoventral setal lobes. Apex of seta- less mesocaudal lobe produced into short, wide plate in dorsal view ( Fig. 196). Apicoventral setal lobes apically broad in lateral view ( Fig. 195); lateral margins curving mesad, both apices tapering in dorsal view ( Fig. 196). Gap between apicoventral setal lobes wide ( Fig. 196). Lateral setose areas forming pair of elevated warts located dorsally on segment, clearly visible in dorsal and lateral view; apices not exceeding lateral margin of segment X in dorsal view ( Fig. 196); in lateral view located above mid-height of segment ( Fig. 195), anteriorly of posterior margin of setaless mesocaudal lobe ( Fig. 196). Transverse sutures pronounced in dorsal view, dividing segment X into slightly sclerotised basal part and more strongly sclerotised distal part ( Fig. 195). Longitudinal sutures shorter than transverse sutures, merging with transverse sutures ( Figs. 195, 196). Coxopodites extending beyond apex of segment X; straight ( Fig. 195), strongly dilated at base ( Figs. 195, 197). Harpagones bilobed, with long ventral branch; dorsal branch small ( Figs. 195, 198), blunt; ventral branches claw-like, curving dorsad, forming half rings with dorsal lobe. Phallothecal dorsum ( Fig. 199) concave; sclerotised endothecal process long, drop-shaped; phallotremal sclerites narrow, oriented ventrad in lateral view; vestigial membranous endothecal lobes not visible.

Holotype male: MYANMAR: N.E., Kambaiti , 7000 ft, 20.v.1934 [R. Malaise], ( BMNH, in alcohol).

Paratype: same data as holotype, except — 1 male ( OPC, in alcohol) .

Distribution: Myanmar.

Etymology: after the curved genital units: “abhugna” curved in Sanscrit.