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NOTES ON THE ORGANS AND PROCESSES OF SPERM-TRANSFER IN THE LOWER DIPTERA

Published online by Cambridge University Press:  31 May 2012

J. A. Downes
J. A. Downes
Affiliation:
Entomology Research Institute, Canada Department of Agriculture, Ottawa
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Abstract

In Tanyderidae, Blepharoceridae, and Cylindrotominae, the aedeagus of the male carries three seminal ducts which open independently. In the female, similarly, there are three spermathecae and their ducts lead to independent openings on the ninth sternum, spaced to correspond to those of the male. The aedeagal ducts are very narrow and arise from an ejaculatory pump supplied by the common duct of the testes; and during mating the aedeagal openings are closely applied to the spermathecal openings or inserted into the spermathecal ducts. The ejaculatory pump and closed system during mating occur in many, but not all, Nematocera and perhaps throughout the Brachycera, but the tripartite condition of the organs of sperm transfer is reduced to a bipartite condition in Phlebotominae and to a ’simple’ condition, with only a single opening of the aedeagus and spermathecal system, in nearly all other Diptera. The spermathecae themselves, however, remain three in number almost throughout the order, though their ducts unite before opening; and this pattern must have been derived from the tripartite pattern of the Tanyderidae, etc., which represents the basic condition in the order.

In the Culiciformia (Culicidae, Chironomidae, Simuliidae, etc.) on the other hand, there is no ejaculatory pump but its place is taken by a wide duct lined with folded cuticle and covered by a muscular coat. The aedeagus is not suited for close apposition to the spermathecal opening. During mating a larger quantity of sperm-containing material is deposited in the surrounding atrium, as a liquid (Culicidae) or often as a spermatophore. Sperm transfer can be completed rapidly, as the pair meet in flight in the swarm. One primitive family, the Dixidae, constitutes an exception to these generalizations.

The Bibionomorpha, except for Anisopus, were not studied.

A brief comment is made on the characteristic small size of the dipterous spermatheca and the fineness of the spermathecal ducts.

Type
Articles
Information
The Canadian Entomologist , Volume 100 , Issue 6 , June 1968 , pp. 608 - 617
Copyright
Copyright © Entomological Society of Canada 1968

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References

Abul-Nasr, S. E. 1950. Structure and development of the reproductive system of some species of Nematocera. Phil. Trans. R. Soc. (B) 234: 339–396.Google ScholarPubMed
Alexander, C. P. 1927. Tanyderidae in Genera Insectorum (ed. Wytsman, P.), Fasc. 189, Bruxelles.Google Scholar
Christophers, S. R., and Barraud, P. J.. 1926. The development of the male and female hypopygium of Phlebotomus. Indian J. med. Res. 13: 853–870.Google Scholar
Clements, A. N. 1963. The physiology of mosquitoes. Pergamon Press, Oxford.Google Scholar
Crampton, G. C. 1926. A phylogenetic study of the thoracic sclerites of the psychodoid Diptera, with remarks on the interrelationships of the Nematocera. Ent. News 37: 33–39.Google Scholar
Crampton, G. C. 1942. The external morphology of the Diptera, in The Diptera or true flies of Connecticut, fasc. 1. Bull. 64, State Geol. and Nat. Hist. Survey, Hartford, Conn.Google Scholar
Davies, L. 1965. On spermatophores in Simuliidae. Proc. R. ent. Soc. Lond. (A) 40: 30–34.Google Scholar
Downes, J. A. 1958 a. The feeding habits of biting flies and their significance in classification. A. Rev. Ent. 3: 249–267.Google Scholar
Downes, J. A. 1958 b. Assembly and mating in the biting Nematocera. Proc. Tenth int. Congr. Ent., Montreal, 1956. Vol. 2, pp. 425–434.Google Scholar
Downes, J. A., and Colless, D. H.. 1967. Mouthparts of the biting and blood-sucking type in Tanyderidae and Chironomidae. Nature, Lond. 214: 1355–1356.CrossRefGoogle Scholar
Edwards, F. W. 1926. The phylogeny of nematocerous Diptera: a critical review of some recent suggestions. Verh. III Intern. Ent.-Kongress (Zurich, 1925). Vol. 2, pp. 111–130.Google Scholar
Edwards, F. W. 1929. Blepharoceridae in Diptera of Patagonia and south Chile Pt. 2. Fasc. 2, pp. 33–75.Google Scholar
Edwards, F. W. 1930. Bibionidae, etc. in Diptera of Patagonia and south Chile Pt. 2. Fasc. 3, pp. 77–119.Google Scholar
Edwards, F. W. 1938. British short-palped crane flies. Taxonomy of adults. Trans. Soc. Br. Ent. 5: 1–168.Google Scholar
Edwards, F. W. 1941. Mosquitoes of the Ethiopian region. III. Culicine adults and pupae. Br. Mus. (Nat. Hist.), London.Google Scholar
Evans, J. W. 1942. The morphology of Nannochorista maculipennis Tillyard (Mecoptera). Trans. R. Soc. S. Aust. 66: 218–225.Google Scholar
Fairchild, G. B. 1952. Notes on Bruchomyia and Nemopalpus (Diptera, Psychodidae). Ann. ent. Soc. Am. 45: 259–280.Google Scholar
Fairchild, G. B., and Hertig, M. 1950. Notes on the Phlebotomus of Panama VII. The subgenus Shannonomyina Pratt. Ann. ent. Soc. Am. 44: 399–421.Google Scholar
Giglioli, M. E. C., and Mason, G. F.. 1966. The mating plug in anopheline mosquitoes. Proc. R. ent. Soc. Lond. (A) 41: 123–129.Google Scholar
Hennig, W. 1948. Die Larvenformen der Diptera. I Teil. Akademie-Verlag, Berlin.Google Scholar
Hennig, W. 1958. Die Familien der Diptera Schizophora und ihre phylogenetischen Verwandtschaftsbeziehungen. Beitr. Ent. 8: 505–688.Google Scholar
Hertig, M. 1949. The genital filaments of Phlebotomus during copulation. Proc. ent. Soc. Wash. 51: 286–288.Google Scholar
Hodapp, C. J., and Jones, J. C.. 1961. The anatomy of the adult male reproductive system of Aedes aegypti (Linnaeus). Ann. ent. Soc. Am. 54: 832–844.CrossRefGoogle Scholar
Jones, J. C., and Wheeler, R. C.. 1965 a. Studies on spermathecal filling in Aedes aegypti (Linnaeus). I. Description. Biol. Bull. mar. biol. Lab., Woods Hole 129: 134–150.Google Scholar
Jones, J. C., and Wheeler, R. C.. 1965 b. An analytical study of coitus in Aedes aegypti (Linneaus). J. Morph. 117: 401–423.Google Scholar
Jordan, K. 1921. A link between the double and single receptacula seminis of Siphonaptera. Ectoparasites 1: 127–128.Google Scholar
Lefevre, G. Jr., and Jonsson, V. B.. 1962. Sperm transfer storage, displacement, and utilization in Drosophila melanogaster. Genetics 47: 1719–1736.CrossRefGoogle ScholarPubMed
Lum, P. T. M. 1961 a. The reproductive system of some Florida mosquitoes. I. The male reproductive tract. Ann. ent. Soc. Am. 54: 397–401.CrossRefGoogle Scholar
Lum, P. T. M. 1961 b. The reproductive tract of some Florida mosquitoes. II. The male accessory glands and their role. Ann. ent. Soc. Am. 54: 430–433.Google Scholar
Neumann, H. 1958. Der Bau und die Funktion der männlichen Genitalapparate von Trichocera annulata Meig. und Tipula paludosa Meig. Dt. ent. Z. (N.F.) 5: 235–298.Google Scholar
Nielsen, E. T. 1959. Copulation in Glyptotendipes (Phytotendipes) paripes Edwards. Nature, Lond. 184: 1252–1253.Google Scholar
Oliver, D. R. Adaptations of arctic Chironomidae. Ann. Zool. Fenn. In press.Google Scholar
Peus, F. 1958. Tanyderidae. Liriopeidae. In Lindner, E. (ed.) Die Fliegen der Palaearctischen Region 10a, b. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart.Google Scholar
Pomerantzev, B. I. 1932. Beiträge zur Morphologie und Anatomie der Genitalien von Culicoides (in Russian, German summary). Mag. Parasit., Leningrad 3: 183–214.Google Scholar
Potter, E. 1938. The internal anatomy of the order Mecoptera. Trans. R. ent. Soc. Lond. 87: 467–502.Google Scholar
Rees, B. E., and Ferris, G. F.. 1939. The morphology of Tipula reesi Alexander. Microentomology 4: 143–178.Google Scholar
Rubtzov, Ia. A. 1956. Blackflies (fam. Simuliidae) (in Russian). Fauna U.S.S.R. 64, Diptera 6(6). Acad. Sci. U.S.S.R., Moscow.Google Scholar
Rubtzov, Ia. A. 1959–1964. Simuliidae (Melusinidae) in Lindner, E. (ed.), Die Fliegen der palaearctischen Region, 14. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart.Google Scholar
Sinton, J. A. 1925. The hypopygium of the female Phlebotomus. Indian J. med. Res. 13: 97–108.Google Scholar
Sinton, J. A. 1932. Some further records of Phlebotomus from Africa. Indian J. med. Res. 20: 565–576.Google Scholar
Sinton, J. A., and Barraud, P. J.. 1928. Improved methods for the identification of some species of Phlebotomus used in experimental work. Indian J. med. Res. 16: 325–332.Google Scholar
Snodgrass, R. E. 1957. A revised interpretation of the external reproductive organs of male insects. Smithson. misc. Colins 135, No. 6.Google Scholar
Spielman, A. 1964. The mechanics of copulation in Aedes aegypti. Biol. Bull. mar. bio!. Lab., Woods Hole 127: 324–344.Google Scholar
Stuckenberg, B. R. 1958. Taxonomic and morphological studies on the genus Paulianina Alexander. Mém. Inst. scient. Madagascar 10: 97–198.Google Scholar
Theodor, O. 1958. Psychodidae-Phlebotominae in Lindner, E. (ed.), Die Fliegen der Palaearctischen Region, 9c. Schweizerbart'sche Verlagsbuchhandlung, Stuttgart.Google Scholar
von der Brelje, R. 1924. Die Anhangsorgane des weiblichen Geschlechtsorgane der Stechmücken (Culicidae). Zool. Anz. 61: 73–80.Google Scholar
Wenk, P. 1965. Ueber die Biologie blutsaugender Simuliiden (Diptera). II. Schwarmverhalten, Geschlechterfindung und Kopulation. Z. Morph. Oekol. Tiere 55: 671–713.CrossRefGoogle Scholar
Wensler, R. J. D., and Rempel, J. G.. 1962. The morphology of the male and female reproductive systems of the midge, Chironomus plumosus L. Can. J. Zool. 40: 199–229.CrossRefGoogle Scholar
Wilkes, A. 1965. Sperm transfer and utilization by the arrhenotokous wasp Dahlbominus fuscipennis (Zett.). Can. Ent. 97: 647–657.Google Scholar
Williams, I. W. 1933. The external morphology of the primitive Tanyderid Dipteron Protoplasa fitchii O.S., with notes on other Tanyderidae. Jl N.Y. ent. Soc. 41: 1–35.Google Scholar
Wirth, W. W., and Hurbert, A. A.. 1959. Trithecoides, a new subgenus of Culicoides. Pacif. Insects 1: 1–38.Google Scholar