00903nam0-22003371i-450-990002037510403321200210100-521-25766-2000203751FED01000203751(Aleph)000203751FED0100020375120021010d--------km-y0itay50------baitaHoverfliesFrancis S. GilbertCambridgeCambridge University Press198666 p. 4 tv. color.21 cmNaturalists' Handbooks5DitteriDiptera, SyrphoideaDiptera, Syrphidae595.77Gilbert,Francis S.86648ITUNINARICAUNIMARCBK99000203751040332161 V C.7/0841963 (5/10/89)DAGENDAGENHoverflies407338UNINAING01