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

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

Relationships: Resembles P. inquilinus HENDEL in having posterior reclinate orbital bristle arising nearer to anterior reclinate than to inner vertical (cf. Key to Paracacoxenus species by MCALPINE. 1968: 520), but differs from it in having an unspotted mesonotum. Gitona distigma MEIGEN, 1830 (Figs. 7-10) Specimens examined — Central aimak: 80 von Somon Bajanzogt, 1600 m, 11. VI. 1966 (Nr. 5I7b), 1 rf . - Chovd aimak: 3 km N von Somon Ueno, im Tal des Flußes Ueno gol, 1450 m, 2.-3. VII. 1966 (Nr. 614), 1 Q. - Mittelgobi aimak: 8 km NW von den Ruinen des Klosters Oldoch Chijd, 54 km NNW von Somon Zogt-Ovoo, 1350 m, 9. VII. 1967 (Nr. 905). This species "always seems to be correctly identified" (BASDEN 1961: 169), due especially to characteristic wing spot in both sexes. Male genitalia (Figs. 7-8) generally pale yellow. Genital arch and clasper seemingly fused, latter with about thirteen black marginal teeth. Aedeagus and apodeme elongate. Anterior paramere small, rod-shaped, subbasally with a few sensillae and apically with two bristles. Ejaculatory apodeme (Figs. 9-10) with triangular plate. Distribution: Mongolia (new record), Europe. Gitona vlasovi DL T DA, 1935 (Figs. 11-12) Specimens examined — Chovd aimak: Jamatin Dolon, cca 40 km N von Somon Manchan, an SW T Ecke des Sees Char us nuur, 1200 m, 11. VII. 1966 (Nr. 673), 1 rf. - Gobi Altaj aimak: Baga nuuryn urd els, am SO Ecke des Sees Döröö nuur, 1200 m, 12. VII. 1966 (Nr. 680), 1 rf. — Mittelgobi aimak: Choot bulag, zwischen Somon Chuld und Somon Delgerchangaj, 38 km ONO von Delgerchangaj, 1480 m, 10. VI. 1967 (Nr. 782). 1 g', 2 $ ; Delgerchangaj ul Gebirge, 6 km S von Somon Delgerchangaj, 1650 m, 11. VII. Figs. 7-10. Gitona distigma MEIGEN.: 7 = Periphallic organs; 8 = Phallic organs (ventral aspect): 9-10 = Ejaculatory apodeme. - Figs. 11-12. Gitona vlasovi DUDA: 11 = Periphallic organs; 12 = Phallic or­gans (ventral aspect). - Explanation of signs as in Figs. 1-6. Scales 0.1 mm.

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