Entomophthora eruptaandEntomophthora helveticasp. nov. (Zygomycetes: Entomophthorales), two pathogens of Miridae (Heteroptera) distinguished by pathobiological and nuclear features

摘要

An emended description ofEntomophthora eruptaand a description ofEntomophthora helveticasp. nov., fungi pathogenic to insects of the family Miridae, are given.Entomophthora eruptausually had 2ndash;5 nuclei per conidium (mean diameter of 3.8ensp;mu;m), colonized predominantly the abdomen of the host, and sporulated on the dorsal surface of the abdomen of the adult host, usually before death;E.helveticausually had 8ndash;13 nuclei per conidium (mean diameter of 1.6 mu;m), colonized the whole interior of the host, killed it in the nymphal stage before sporulation started, and sporulated on all parts of the cadaver. We advocate these features, including the pathobiological manifestations, as important taxonomic criteria at the infrageneric level of the genusEntomophthora sensu stricto.