plasmodium joyeuxi plasmodium joyeuxi plasmodium joyeuxi is a parasite of the genus plasmodium subgenus vinckeia. as in plasmodium species, p. joyeuxi has both vertebrate and insect hosts. the vertebrate hosts for this parasite are mammals. plasmodium joyeuxi scientific classification domain: eukaryota clade: diaphoretickes clade: tsar clade: sar clade: alveolata phylum: apicomplexa class: aconoidasida order: haemospororida family: plasmodiidae genus: plasmodium species: p. joyeuxi binomial name plasmodium joyeuxiledger, 1928 taxonomy the parasite was first described by ledger in 1928. hosts the only known host for this species is the monkey cercopithecis callitricus.