The previously unknown males of Idris (I.) lamelliscutellaris Szabó and I. (I.) priesneri n.n. (fasciatus Preisner) are described. New names are also I. (C.) hickmani for flavipes Hickman and I. (C.) aterrimus for ater Hickman. New combinations are I. (C.) fasciatus (Dodd) from Ceratobaeus; I. (I.) flavipes (Dodd) from Acolus. I. (C.) lucifugax (Kieffer, 1910) n.comb., omitted by authors and also by Kieffer himself since description, is redescribed and the lectotype of I. (I.) flavicornis Förster was studied.