SUZZONI J.-P. & CAGNIANT H., 1975. — Étude histologique des voies génitales chez l'ouvrière et la reine de Cataglyphis cursor Fonsc. (Hyménoptères Formicidae). Arguments en faveur d'une parthénogenèse thélytoque chez cette espèce. — Insectes soc, 22 : 83-92.
WEHNER R., 1987. — Spatial organization of foraging behaviour in individually seaching désert ants Cataglyphis (Sahara) and Ocymyrmex (Namib désert). In « From individual to collective behavior in social insects », J.M. Pasteels & J.L. Deneubourg (eds). — Experientia, suppl., 54 : 15-42.
On the systematic position of Drosophila stackelbergi Duda
and Drosophila nipponica Kikkawa & Peng
(Diptera : Drosophilidae)
Vasily S. SIDORENKO
Institute of Biology and Pedology, Far East Division, USSR Academy of Science, Vladivostok-22, USSR
Oswald von Duda (1935) described Drosophila stackelbergi from a single spécimen (maie) taken at South Far East of USSR. Type locality of the species — Ussuri-region, Maikhe (at présent Artemovka) river, near Shkotovo. Since that time this species has not been rediscovered. I hâve two maies of this species labeled : Khabarovsk province, Komsomolsk-on-Amur, a sity park, 26-IV-1988 (leg. Mutin) and Primorie Territory, near Romanovka, 20-V-1989 (leg. Sidorenko).
Systematic position of this species remained unknown for a long time. I believe basing on the study of the holotype and mentioned spécimens that D. stackelbergi belongs to miki species-group of the subgenus Lordiphosa. Ail features which Lastovka and Maca (1978) indicated for this subgenus are characteristic for this species. There are three species of miki species-group in the adjacent territories, among them Drosophila nipponica Kikkawa & Peng, 1938 is most closely related to D. stackelbergi. However, the study of Japanese spécimens of D. nipponica shows that this species is almost identical to D. stackelbergi. I found only some little différences in the wing indicies.
But thèse différences are so small that they cannot hâve spécifie value. Therefore, it is reasonable to consider D. nipponica as a subjective synonym of D. stackelbergi (Syn. nov.).
My hearty thanks are to Dr H. Schumann (Muséum fur Naturkunde der Humboldt-Universitat, Berlin) who provided me with holotype of D. stackelbergi and Prof. Emerit. T. Okada (Setagaya- ku, Tokyo) for sending me several spécimens of D. nipponica.
LITERATURE CITED
DUDA O. Von, 1935. — 58g. Drosophilidae (part II) : 65-118 M E. LINDNER (éd.) : Die Fliegen der palaearc-
tischen Région, E. Nàgele, Stuttgart. LASTOVKA P. & MACA J., 1978. — European Species of the Drosophila subgenus Lordiphosa (Diptera,
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