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G.  Ståhls-Mäkelä, ?Phylogenetic analysis of the genus Cheilosia Meigen (Syrphidae) using mitochondrial COI sequence data?, Fourth International Congress of Dipterology. International Congress of Dipterology, Oxford, United Kingdom, p. 217, 1998.

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H.  Hippa, ?The phylogeny of Syrphidae: The main clades?, Fourth International Congress of Dipterology. International Congress of Dipterology, Oxford, United Kingdom, p. 83, 1998.

J. - H.  Stuke, Wolff, D., and Malec, F., ?Rote Liste der in Niedersachsen und Bremen gefahrdeten Schwebffiegen (Diptera: Syrphidae)?, Inform. d. Naturschutz Niedersachs., vol. 18, pp. 1-16, 1998.

A.  Loni and Raspi, A., ?Some interesting Diptera living in olive-groves of the Monte Pisano?, Frustula Entomologica, vol. 21, pp. 93-102, 1998.

P.  Laska and Mazanek, L., ?Syrphidae (Diptera of the Palava Biosphere Reserve of UNESCO, I)?, Folia Facultatis Scientiarum Naturalium Universitatis Masarykianae Brunensis Biologia, vol. 99, pp. 203-213, 1998.

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H. G.  Dirickx, Catalogue Synonymique et Géographique des Syrphidae (Diptera) de la Région Afrotropicale. Muséum d?histoire naturelle Genève, 1998, p. 187.

V. A.  Mutin, ?Cryptopipiza, nom. n., new name for the genus Pseudopipiza Violovitsh (Diptera, Syrphidae)?, International Journal of Dipterological Research, vol. 9, p. 13, 1998.

A. V.  Barkalov and Cheng, X. Y., ?New species and new records of hover-flies of the genus Cheilosia Mg. from China (Diptera: Syrphidae)?, Zoosystematica Rossica, vol. 7, pp. 313-321, 1998.

B.  Merz, ?Spilomyia diophthalma (Linnaeus) und Spilomyia manicata (Rondani) (Diptera, Syrphidae) im unterengadin (Schweiz)?, Volucella, vol. 3, pp. 155-156, 1998.

C.  F. Thompson and Vockeroth, J. R., ?Australasian/ Oceanic Diptera Catalog - Web Version?, Catalog of the Diptera of the Australasian and Oceanian Regions(online version). 1998.

J. - H.  Stuke and Wolff, D., ?Bemerkenswerte Schwebfliegenbeobachtungen (Diptera: Syrphidae) aus Niedersachsen und Bremen 2?, Osnabrücker Naturwissenschaftliche Mitteilungen, vol. 24, pp. 257-264, 1998.

J. - H.  Stuke, ?Die Bedeutung einer städtischen Grünanlage für die Schwebfliegenfauna (Diptera: Syrphidae) dargestellt am Beispiel des Bremer "Stadtwaldes"?, Abhandlungen des Naturwissenschaftlichen Vereins Bremen, vol. 44, pp. 93-114, 1998.

A. J.  Hart and Bale, J. S., ?Factors affecting the freeze tolerance of the hoverfly Syrphus ribesii (Diptera: Syrphidae)?, Journal Of Insect Physiology, vol. 44, pp. 21-29, 1998.

C.  Pérez-Bañón and Marcos-Garc{\'?a, A., ?Life history and description of the immature stages of Eumerus purpurariae (Diptera: Syrphidae) developing in Opuntia maxima?, European Journal of Entomology, vol. 95, pp. 373-382, 1998.

A.  Vujic and Stuke, J. - H., ?A new hoverfly species of the genus Melanogaster from Central Europe (Diptera, Syrphidae)?, Studia dipterologica, vol. 5, pp. 343-347, 1998.

M.  De Meyer, ?A new species of Paragus Latreille (Diptera, Syrphidae) from Kenya?, Ann. Natal Mus., vol. 39, pp. 143-147, 1998.