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  • Marcos Kogan (a1) and E. F. Legner (a1)


Extensive collections of synanthropic fly parasitoids in animal excrement accumulations in the United States, Mexico, Costa Rica, Puerto Rico, Uruguay, Chile, Denmark, Israel, and South Africa yielded seven forms of a Muscidifurax complex which were totally or partially reproductively isolated. Morphological studies of female and male parasitoids coupled with biological and zoogeographical information permitted the identification of five sibling species. Muscidifurax raptor Girault and Sanders 1910 is redescribed and four additional species are described as new: M. zaraptor, from the southwestern United States; M. raptoroides from Central America and Mexico; M. uniraptor from Puerto Rico, and M. raptorellus from Uruguay and Chile. Biological notes are added to the descriptions, and it was postulated that the genus is undergoing a process of speciation with local populations slowly becoming reproductively isolated and eventually giving rise to morphologically distinguishable entities. Most evidence suggests the establishment of Muscidifurax in the New World, concomitant with or shortly following the establishment of muscoid flies in accumulated excrement. Scanning electronmicroscopy was used in the analysis of some morphological structures.



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Brown, W. J. 1959. Taxonomic problems with closely related species. A. Rev. Ent. 4: 7798.
Claridge, M. F., and Askew, R. R.. 1960. Sibling species in the Eurytoma rosaegroup. (Hym., Eurytomidae). Entomophaga 5 (2) : 142153.
DeBach, P., and Smith, H. S.. 1941. The effect of host density on the rate of reproduction of entomophagous parasites. J. econ. Ent. 34: 741745.
Frison, T. H. 1927. List of the insect types in the collections of the Illinois State Natural History Survey and the University of Illinois. Bull. Ill. St. nat. Hist. Surv. 16: 137309.
Girault, A. A., and Sanders, G. E.. 1909. The chalcidoid parasites of the common house or typhoid fly (Musca domestica Linn.) and its allies. I: Reconstruction of the chalcidoid genus Nasonia Ashmead of the family Pteromalidae, with description and biology of Nasonia brevicornis Ashmead, species nova, its type species from Illinois. Psyche, Camb. 16: 119132.
Girault, A. A., and Sanders, G. E.. 1910. III: Description of a new North American genus and species of the family Pteromalidae from Illinois, parasitic on Musca domestica Linn., with biological notes. Psyche, Camb. 18: 145160.
Legner, E. F. 1969. Reproductive isolation and size variation in the Muscidifurax raptor complex. Ann. ent. Soc. Am. 62(2): 382385.
Legner, E. F., Bay, E. C., and McCoy, C. W.. 1965. Parasitic natural regulatory agents attacking Musca domestica L. in Puerto Rico. J. Agric. Univ. P. Rico 49: 368376.
Legner, E. F., Bay, E. C., and White, E. B.. 1967. Activity of parasites from Diptera: Musca domestica, Stomoxys calcitrans, Fannia canicularis, and F. femoralis, at sites in the Western Hemisphere. Ann. ent. Soc. Am. 60(2): 462468.
Legner, E. F., and Brydon, H. W.. 1966. Suppression of dung-inhabiting fly populations by pupal parasites. Ann. ent. Soc. Am. 59: 638651.
Legner, E. F., and Gerling, D.. 1967. Host-feeding and oviposition on Musca domestica by Spalangia cameroni, Nasonia vitripennis, and Muscidifurax raptor (Hymenoptera: Pteromalidae) influences their longevity and fecundity. Ann. ent. Soc. Am. 60(3): 678691.
Legner, E. F., and Greathead, D. J.. 1969. Parasitism of pupae in East African populations of Musca domestica and Stomoxys calcitrans. Ann. ent. Soc. Am. 62(1): 128133.
Legner, E. F., and McCoy, C. W.. 1966. The housefly, Musca domestica Linnaeus, as an exotic species in the Western Hemisphere incites biological control studies. Can. Ent. 98: 243248.
Legner, E. F., and Olton, G. S.. 1968. Activity of parasites from Diptera: Musca domestica, Stomoxys calcitrans, and species of Fannia, Muscina, and Ophyra. II: At sites in the Eastern Hemisphere and Pacific Area. Ann. ent. Soc. Am. 61 (5) : 13061314.
McCoy, C. W. 1967. Biosystematics and field studies of two parasites of the Muscidifurax raptor complex (Hymenoptera: Pteromalidae) with particular reference to sex determination. Ph.D. Dissertation, Univ. of California, Riverside. 166 pp.
Mayr, E. 1963. Animal Species and Evolution. Hanard Univ. Press, Cambridge, Mass.797 pp.
Muesebeck, C. F. W., Krombein, K. V., and Townes, H. K. et al. 1951. Hymenoptera of America north of Mexico synoptic catalog. Agriculture Monogr. 2. 1420 pp. U.S. Dep. Agric.
Nikols'Kaya, M. N. 1952 (1963). The chalcid fauna of U.S.S.R. (English translation.) Off. Tech. Services, U.S. Dep. Commerce, Washington, D.C.593 pp
Peck, O. 1963. A catalogue of the Nearctic Chalcidoidea (Insecta: Hymenoptera). Can. Ent. suppl. 30, 1092 pp.
Peck, O., Bouček, Z., and Hoffer, A.. 1964. Keys to the Chalcidoidea of Czechoslovakia (Insecta: Hymenoptera). Mem. ent. Soc. Can., No. 34. 120 pp.
Schlinger, E. I., and Doutt, R. L.. 1964. Systematics in relation to biological control. In: DeBach, P. (ed.), Biological control of insect pests and weeds. Reinhold, New York. pp. 247280.


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