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REFERENCE Subías, L. S. and Balogh, P. (1989): Indentification keys to the genera of Oppiidae Grandjean, 1951 (Acari: Oribatei). —Acta zool. hung. 35: 355-412 (Received: 15th July, 1999) Authors' address: J. BALOGH and P. BALOGH Department of Systematic Zoology and Ecology Eötvös Loránd University H-1445 Budapest, Pf. 330 HUNGARY