Cheumatopsyche mariannae Oláh & Johanson, 2008

Oláh, J. & Johanson, K. A., 2008, Generic review of Hydropsychinae, with description of Schmidopsyche, new genus, 3 new genus clusters, 8 new species groups, 4 new species clades, 12 new species clusters and 62 new species from the Oriental and Afrotropical regions (Trichoptera: Hydropsychidae), Zootaxa 1802, pp. 1-248 : 206-207

Cheumatopsyche mariannae Oláh & Johanson , new species

Fig. 345–348

This species resembles C. sandrae , new species, described from the same locality. It differs in having a straight, and not convex, mesocaudal area; harpagones being basally broad, not slender cylindrical in ventral view; and the apicoventral setose lobes are flat dorsally, not capitate. The phallotheca has a long ventral subapical broadening, not short like at C. sandrae .

Male. Body and wings pale brown with pale pubescence. Maxillary palp formula I-(III, IV)-II-V, segment V as long as sum of segments I–IV. Antennae about 1.2 times longer than forewings. Head dorsum brown, with 9 brown setal warts. Swollen setal wart absent on proepisternum. Setal wart present on precoxale. Spur formula 244. Protibiae with minute postroapical spurs. Pretarsal claw asymmetrical, laterally flanked by setal bundle.

Wings. Forewing membrane uniformly coloured, with darker veins. Forewing crossvein m-cu located apically of crossvein cu, touching obliquely; SR and R not confluent, separate at costa. Cu1 and A1 separate. Hind wing Sc and R confluencing apically of crossvein r by a distance equal to length of crossvein. Crossvein r tangential with s forming oblique line. Fork 1 absent. Forewing length 5.3 mm.

Male genitalia. Abdominal segment IX fused annularly; sternum 3 times longer than tergum ( Fig. 345). Anterior margins of segment IX regularly bow-shaped, flat dorsally in lateral aspect ( Fig. 345). Apical lobe on posterolateral margins small, forming right angle, located above less sclerotized articulation cavity of gonocoxite. Antecosta on each side well developed, forming single, slightly irregular line, narrowing before margin; external groove of antecostal sutures well developed ( Fig. 345). Spine row on posterior margin of segment IX continuous. Spines on dorsolateral spiny lobes slightly longer than spines in ventrad orienting row on apical lobes ( Fig. 345). Intersegmental step between segment IX and X sloping. Segment X medium long; body triangular in lateral view ( Fig. 345); regularly quadrangular in dorsal view, with apical broadening due to laterally produced, apicoventral setose lobes ( Fig. 346); bilobed. Dorsal interlobular gap wide, moderately deep ( Fig. 346). Transverse suture crossing obliquely middle of the segment. Longitudinal suture continuing from apicoventral setose lobe on both sides, meeting and crosses transverse suture in X. Transverse suture running obliquely across segment IX; dividing segment IX into short, less sclerotized basal part and long, stronger sclerotized distal part ( Fig. 345). Smooth dorsomesal plate straight. Apicoventral setose lobes with dorsally flat apex in lateral view ( Fig. 345); apex orienting posterad in dorsal view ( Fig. 346); producing laterad and anterad into protruding corners seen in dorsal view ( Fig. 346); setae only at apex tip. Lateral setose areas (superior or preanal appendages) forming circular, elevated warts distally and above basis of apicoventral setose lobes; surrounded by longitudinal and transverse sutures ( Fig. 345). Coxopodites exceeding apex of segment X, forming straight, nearly parallel-sided rod, apex dilating; nearly straight in ventral view ( Fig. 347). Harpagones originating from ventral corner on coxopodite apices; parallel-sided along their length; slightly curving dorsad in lateral view ( Fig. 345); basally very broad in ventral view ( Fig. 347). Phallotheca with slightly concave dorsum ( Fig. 348), constricted at mid-length, broadens well before apex. Endophallus tube-shaped, filling almost entire phallotheca. Chitinized endothecal process elongated ovoid. Phallotremal sclerites vertical, broad in lateral view.

Holotype male: INDIA: Karnataka, Shimoge District, Jog Falls , MV lamp, 2–8.iii.1980 [Gy.Topál] - ( OPC).

Paratype: same data as holotype - 1 male ( OPC) .

Distribution. India (Karnataka).

Etymology. The name of the species is dedicated Marianna, daughter of Professor János Oláh.