Tabanomyces milkoi (Dudka and Koval) emended, genus novum , a fungal pathogen of horseflies

A fungus originally described as a new species ofCoelomomyces (C. milkoi ) from larval Tabanidae in the Ukraine, USSR, is transferred to a new genus,Tabanomyces , and described in detail. The zygospores germinate to form a linear four-celled conidiophore, each cell producing a spherical conidium ejected as inConidiobolus , thus confirming that the organism belongs in the Entomophthorales. The resemblance between the conidiophore ofTabanomyces milkoi and the basidium of the rusts supports the old concept that the rust fungi may be related to the Entomophthorales.