Cheumatopsyche brazzana 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 : 147-148

Cheumatopsyche brazzana Oláh & Johanson , new species

Fig. 353–356

This small species is similar to C. punctata (Jacquemart) from Congo and C. lesnei (Mosely) described from Mozambique and later reported from Uganda, Dakar, Rhodesia and Natal. Cheumatopsyche brazzana is distinguished from C. punctata by the absence of light patterns in the forewings; and from both species in the harpagones having digitate apices.

Male. Body and wings ochraceous, almost yellow, with light pubescence; wings without spots or pattern. Maxillary palp segment ratio unusual, segment I shortest, segment II shorter than segment III, segment III shorter than segment IV, segment V as long as sum of segments I–IV. Head dorsum yellow with 5 similarly coloured warts, vertex and warts densely covered with setae. Proepisternum without swollen setal wart. Each protibiae with 2 spurs. Protarsal claws asymmetrical, laterally flanked by setal bundle. Forewing length 4.8 mm, hind wing length 3.8 mm. Hind wing fork I absent. Distance between forewing crossveins m-cu and cu equal to 1.5x length of crossvein m-cu.

Male genitalia. Segment IX fused annularly; sternum about 2 times longer than tergum ( Fig. 353); anterior margins of segment IX irregularly convex; apical lobe on posterior margins of segment IX short, triangular, located immediately above base of coxopodites; spine row on posterior margins of segment IX complete; all spines very long and stiff. Intersegmental step between segment IX and segment X shallow. Segment X broad, nearly quadrangular in lateral view ( Fig. 353); broad, quadrangular in dorsal view ( Fig. 354). Dorsal and lateral interlobular gaps absent. Setaless mesocaudal lobe reduced to small mesal triangular process ( Fig. 354). Lateral setose areas forming elevated circular warts centrally on distal half of segment X, behind transverse sutures, above longitudinal sutures ( Fig. 353). Transverse sutures pronounced, running obliquely in lateral view ( Fig. 353). Longitudinal sutures forming continuation of apicoventral setal lobes ( Fig. 353); located well above ventral margin of segment X. Coxopodites robust, narrowing shortly after bases before dilating distad ( Fig. 353, 355), slightly exceeding apex of segment X. Harpagones tapering along their lengths, curving dorsad in lateral view ( Fig. 353); broad in ventral view except with digitate apices ( Fig. 355). Phallothecal phallobase broad ( Fig. 356), shaft parallel-sided; curving along its length; sclerotised endothecal process elongating, narrower than phallothecal apex; phallotremal sclerites produced posterad, not covered by endothecal process; vestigial, ventral endothecal membranous lobe visible.

Holotype male: CONGO: Brazzaville , 20.xii.1963, light [J. Balogh & A. Zicsi) ( HNHM, in alcohol).

Paratypes: same data as holotype — 3 males ( HNHM, in alcohol), 1 male ( OPC, in alcohol) .

Distribution: Congo.

Etymology: from the name of the type locality.