microbabesia microbabesia microbabesia is a genus of parasitic alveolates belonging to the phylum apicomplexa. microbabesia scientific classification domain: eukaryota (unranked): sar (unranked): alveolata phylum: apicomplexa class: aconoidasida order: achromatorida suborder: babesiina family: babesiidae genus: microbabesiasohns, 1918 species microbabesia divergens history this genus was described by the dutch scientist sohns in 1918 while in the dutch east indies. this species and genus has not been redescribed since. description note the genus microbabesia may be synonymous with that of babesia. further work in this area will be need to clarify this.