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

Dattasca orientális (Datta et Ghosh) 1 M, Sikkim, Rumtek, 1700 m, lamp domes, 1990,1. Dworakowska. Empoasca (s. str.) mona sp. n. (Figs 103, 104) Type material. - Holotype maie: Sikkim, Rumtek, 1700 m, lamp domes, 1990, I. Dworakowska (in SMTD). Body quite robust, pale beige with olivaceous-green tint. Fore wing pale greenish. Signs of whitish hypodermal pattern at sides of vertex, at anterior margin of pronotum, on scutum (except its basal triangles) and at anterior margin of scutellum. Length M 3.0 mm. Male genitalia typical of E. decedens Paoli group. Canaliferous part of penis stem short, very broad in lateral view. Postcanaliferous part short, tapering (Fig. 104), apical process narrow, abrupt apically (Figs 103, 104). Comparison. The new species differs from other similar ones by penis structure, viz.: E. sakaii Dwor. has postcanaliferous part broadened subapically in profile and E. rybiogon Dwor. and E. uniprossicae Sohi (1977, p. 359) have penis stem narrowed basally (FigslOl, 102). Apex of apical appendage in all other species is broadened (Figs 101, 102) and canaliferous part of penis stem is in all of them narrower than in E. mona sp. n. Remarks. Illustrations of E. uniprossicae published in this paper have been made anew by Dr A. S. Sohi in 1982 from the holotype. Empoasca (s. str.) parvipenis sp. n. (Figs 105-109) Type material. - Holotype male: Sikkim, Rumtek, 1700 m, lamp domes, 1990, I. Dworakowska (in SMTD). Sordid light greenis-olivaceous. Signs of whitish hypodermal pattern in centre of scutum and in anterior part of scutellum. Apex of vertex and centre of frontoclypeus light ochre-brownish. Length M 3.8 mm. Male genitalia typical of the E. warchalowskii Dwor. group. Anal tube appendage broadly narrowing to a rounded apex (Fig. 106). Penis stem (when measured from base of its lateral appendages) very short in comparison to manubrium. Apical penis process short, bifurcated terminally, the stem adorned with numerous teeth-like or papillose tubercles on its ventral margin. Lateral appendages broad, as long as the stem with their apices cephalad of the stem (in lateral view Fig. 105). Comparison. Among the known species E. parvipenis sp. n. is the most similar to E. dymarka Dwor. from which it differs by its typical features as above described.