stylocephalidae stylocephalidae stylocephalidae is a family of parasitic alveolates of the phylum apicomplexia stylocephalidae scientific classification domain: eukaryota (unranked): sar (unranked): alveolata phylum: apicomplexa class: conoidasida subclass: gregarinasina order: eugregarinorida suborder: septatorina superfamily: stylocephaloidea family: stylocephalidae genera bulbocephalus campanacephalus clavicephalus cystocephaloides colepismatophila cystocephalus lepismatophila lophocephalus lophocephaloides oocephalus orbocephalus sphaerorhynchus stylocephalus stylocephaloides xiphocephalus taxonomy fifteen genera are recognised in this family. history this taxon was created by ellis in 1912. description species in this taxon infect insects.