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B. V.  Brown and Feener, Jr., D. H., ?Life history parameters and description of the larva of Apocephalus paraponerae (Diptera: Phoridae), a parasitoid of the giant tropical ant Paraponera clavata (Hymenoptera: Formicidae)?, Journal of Natural History, vol. 25, pp. 221-321, 1991.

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D. H.  Colless and McAlpine, D. K., ?Diptera (Flies)?, in The insects of Australia: A textbook for students and research workers, vol. 2, Carlton: Division of Entomology, CSIRO, Melbourne University Press, 1991, pp. 717-786.

T.  Eisner, Eisner, M., and Deyrup, M., ?Chemical attraction of kleptoparasitic flies to heteropteran insects caught by orb-weaving spiders?, Proceedings of the National Academy of Sciences of the United States of America, vol. 88, pp. 8194-8197, 1991.

A.  Freidberg, ?A new species of Ceratitis (Ceratitis) (Diptera: Tephritidae), key to species of subgenera Ceratitis and Pterandrus, and record of Pterandrus fossil?, Occasional Papers of the Bernice P. Bishop Museum, vol. 31, pp. 166-173, 1991.

A.  Freidberg, Knutson, L., and Abercrombie, J., ?A revision of Sepedonea, a Neotropical genus of snail-killing flies (Diptera: Sciomyzidae)?, Smithsonian Contributions to Zoology, vol. 506, p. 48pp, 1991.

G. C. D.  Griffiths, ?Hypopygial musculatur and its implications for homologies between Eremoneura and other Brachycera?, in Proceedings of the Second International Congress of Dipterology held in Bratislava, Czechoslovakia, August 27 - September 1, 1990, The Hague: SPB Academic Publishing bv, 1991, pp. 71-83.

N. P.  Krivosheina, ?Phylogeny of lower Brachycera (Diptera), a new view?, Acta entomologica Bohemoslovaca, vol. 88(2), pp. 81-93,figs, 1991.

W. N.  Mathis and Freidberg, A., ?Review of Afrotropical Beach flies of the tribe Canacini and subfamily Nocticanacinae (Diptera: Canacidae)?, Proceedings of the Entomological Society of Washington, vol. 93, pp. 70-85, 1991.

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M.  E. Lopez, ?Observations on some Dipteran parasites found on chicks of Falco naumanni and Falco tinnunculus in Monegros (North-east of Spain)?, Biology and Conservation of small falcons. Canterbury, 6-8 Sept., p. 30, 1991.

J. T.  Nowakowski, ?Carnidae?, in Checklist of animals of Poland, vol. 2, Wroclaw, Warszawa, Krakow: Polska Adademia Nauk, Instytut Systematyki I Ewolucji Zwierzat, 1991, p. 219.

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E. Ó.  lafsson, ?Íslenskt skordýratal. [A checklist of Icelandic Insects]?, Fjölrit Náttúrufrædistofnunar, vol. 17, p. 69 pp, 1991.

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J. A.  Rafael, ?Insects collected during the Maraca Project, Roraim, Brazil: with complementary list?, Acta amazonica, vol. 21, pp. 325-336, 1991.

N. E.  Stork, ?The composition of the arthropod fauna of Bornean lowland rain forest trees?, Journal of tropical ecology, vol. 7, pp. 161-180, 1991.

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S.  Wada, ?Morphologische Indizien für das unmittelbare Schwestergruppenverhältnis der Schizophora mit den Syrphoidea ('Aschiza') in der phylogenetischen Systematik der Cyclorrhapha (Diptera: Brachycera)?, Journal of Natural History, vol. 26, pp. 1531-1570,figs, 1991.

R.  Wagner, Freidberg, A., and Ortal, R., ?The Dixidae (Diptera: Nematocera) of Israel and Egypt, with a new record from Greece?, Israelian Journal of Entomology, vol. 25-26, pp. 163-176, 1991.

H.  Wendt, ?Seltene Halmfliegenarten aus Deutschland (Diptera, Chloropoidea)?, Deutsche entomologische Zeitschrift, vol. 38, pp. 85-92, 1991.

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