Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 65. (Budapest 1973)

Okada, T.: Drosophilidae and Diastatidae from Mongolia (Diptera)

Figs. 1-6. Paracacoxenus kaszabi sp. n, <J: 1 = Wing; 2 = Head; 3 = Periphallic organs; 4 == Phallic organs (ventral aspect); 5-6 = Ejaculatory apodeme; a) anterior paramere, c) clasper, e) aedeagus, g) genital arch or ninth tergite, o) apodeme of aedeagus, s) submedian spine of hypandrium, t) anal plate or cercus, v) ventral fragnia. Scales O.i mm, fore wing (Fig. 1) 1.0 mm. one-fifth of greatest diameter of eye. Anterior reclinate orbital shghtly shorter than other orbitals, inserted somewhat nearer to proclinate than to posterior reclinate, which is inserted shghtly nearer to anterior reclinate than to inner vertical. Thorax uniformly mat black, shghtly pohinose in grey, without black spots at bases of hairs. Sterno-index 0.8. Anterior scutellars divergent, posteriors equally apart from each other and from anteriors. Legs black, tarsi paler. Wings (Fig. 1) hyahne, cross veins clear, veins M and Cu thin. iü

2

+3 nearly straight. i?

4+5 and M parallel. (7-index 2.8; 4F-index 2.3; 4<7-index 0,6; Ox-index i.2; Ac-index 1.7. üá-fringe on basal one-fourth. Haltères yellow. Abdominal tergites mat black, nearly unicolorous. Periphallic organs (Fig. 3) black. Genital arch ventraUy narrowing, fused to hemispherical clasper. Anal plate comparatively small, hairy and pubescent. Phallic organs (Fig. 4) complicated, black. Aedeagus apically pale, rounded, densely pubescent ; basally rod-shaped with lateral lobes, contiguous with thick apodeme and a dorsal rod, this again contiguous with lateral arms of ventral fragma. Anterior parameres large, semicircularly curved, subapically with a few sensillae. Ejaculatory apodeme (Figs. 5-6) with oval plate. Holotype rf, paratypes 2 çf, I ex. (abdomen missing): Central aimak: Ulan-Baator' Nucht im Bogdo ul, 1750 m, 10. VI. 1966 (Nr. 513), deposited in the Hungarian Natural History Museum, Budapest.