S. Mahunka szerk.: Folia Entomologica Hungarica 55. (Budapest, 1994)

zations that can be only quantitative difference in comparison with other species, but its central lobe flat (Figs 848, 852). Penis stem and its membraneous termination might correspond with that of T. arborea group through its funel-like atrium and extremely elongated membraneous part but sclerotized lateral processes (Figs 849, 850) are unique character of this species. Important diagnostic character of group of species in the genus Typhlocyba Germ., apex of subgenital plate, is missing from the single male of T. yacaba sp.n. and basal abdominal apodemes are narrowing at apices (Fig. 854), uncharacteristically of the genus. Short apical part of wing resembles that of T. ethiopica Dwor. group but there is no guarantee that my reconstruction is correct, and the fore wing of 77. aptera, the most similar Asiatic species, is not known yet. Vatana gen. n. Type-species: Vatana fusca sp. n. Body form similar to that of Byphlocyta Ahmed but more robust (Figs 861, 866). Fore wing form and venation (Fig. 857) as in Byphlocyta and Agnesiella Dwor. having m cell broadened subbasally; two anal veins detectable on clavus. Hind wing venation (Fig. 858) resembles Byphlocyta by bifurcation of CuA shifted apicad but in the new genus there is no sexual dimorphism in shape of apical part of membrane. Genital capsule well sclerotized. Subgenital plate well integntcd, clerotizeo and pigmented, its apical part provided with short feeble microsetae subterminally, short rigid microsetae terminally and a small sclerotized extension and peg-like minute seta on the subapical broadening (Fig. 865). Pygofer well pigmented, separate sclerites not detectable (Fig. 869); setosity consists of a large group of feeble microsetae in centre of ventral part and rigid microsetae at dorso-caudal angle (Fig. 864). Female sternite 7 much longer than any of the preceeding sternites, produced in the midlength, narrowing caudad (Fig. 855). Comparison. Male genital apparatus constructed in a similar way as that of genera of Linnavuoriana Dlab. group, especially Agnesiella Dwor. Penis as in subgenus Draberiella Dwor. but a single ventral extension situated near base of the stem (Figs 867, 870), dorsal bridge between both sides of pygofer (Fig. 869) broader, pygofer uniformly sclerotized and subgenital plate form and setosity différent (Figs 856, 860, 865). The presence of a particular microseta on subgenital plate can be compared with that of Sharmana Dwor. but in the latter the seta is of a different form althought occupies corresponding position. Paramere, connective and abdominal sternite 9 of male (Figs 856, 859, 860, 862) and basal abdominal apodemes (Fig. 868) as in Draberiella. Vatana ogromna (Dwor. 1977) comb. n. Agnesiella (Draberiella) ogromna Dwor. N Vietnam, Lao-cai Prov. (Dworakowska, 1977, p. 34).