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Key to the british species ofdrosophila of the Obscura species-group

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Six species of theobscura group of the genusDrosophila occur in England. They are morphologically very similar, but do not interbreed. The most satisfactory way of distinguishing between them appears to be the shape of the male genital arch, and the female ovipositor lamellae, as well as the length of the male tarsal combs, the shape of the palps, and the proportion of the 3rd costal segment of the wing which is covered by long bristles. A separate key for the males and females is given, with illustrations, to show the differences between the six species.

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  1. Basden, E. B. (1952). Some Drosophilidae (Diptera) of the British Isles.Ent. Mon. Mag. 88, 200–1.

  2. Burla, Hans (1948). Die GattungDrosophila in der Schweiz.Rev. suisse Zool. 55, 272–9.

  3. Burla, Hans (1951). Systematik, Verbreitung und Oekologie derDrosophila-Arten der Schweiz.Rev. suisse Zool. 58, 23–175.

  4. Cain, A. J., Collin, J. E. &Demerec, V. R. (1952). Correct Application of the nameDrosophila obscura Fallén and notes on the type ofD. tristis Fallén (Dipt., Drosophilidae).Ent. Mon. Mag. 88, 193–6.

  5. Collin, J. E. (1936). In Gordon, C.: The frequency of heterozygosis in free-living populations ofDroso-phila melanogaster andDrosophila subobscura.J. Genet. 33, 25–60.

  6. Fallén, C. F. (1823).Diptera Sveciae. 2.Geomyzidae, pp. 1–8. Lund.

  7. Patterson, J. T. &Stone, W. S. (1952).Evolution in the Genus Drosophila. New York: The Macmillan Company.

  8. Pomini, P. F. (1940). Contributi alla conoscenza delleDrosophila europee.Boll. Ent. Bologna,12, 145–64.

  9. Sturtevant, A. H. (1942). The classification of the genus Drosophila with descriptions of nine new species.Publ. Univ.Texas, no. 4213, pp. 5–51.

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Correspondence to V. R. (Demerec) Dyson-hudson.

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(Demerec) Dyson-hudson, V.R. Key to the british species ofdrosophila of the Obscura species-group. J Genet 52, 555 (1954).

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  • Aucl
  • Median Process
  • Abdominal Tergite
  • External Process
  • Longitudinal Stripe