The Caulleryellidae are a family of parasites in the

phylum In biology, a phylum (; plural: phyla) is a level of classification or taxonomic rank below kingdom and above class. Traditionally, in botany the term division has been used instead of phylum, although the International Code of Nomenclature f ...

Apicomplexa. Species in this family mostly infect

diptera Flies are insects of the order Diptera, the name being derived from the Greek δι- ''di-'' "two", and πτερόν ''pteron'' "wing". Insects of this order use only a single pair of wings to fly, the hindwings having evolved into advanced ...

n larvae.

History

This family was created by the parasitologist David Keilin in 1914.Keilin D (1914) CR Soc Biol Paris 76 (1) 768

Taxonomy

Two genera are placed in this family - ''

Caulleryella ''Caulleryella'' is a genus of parasitic alveolates of the phylum Apicomplexa. Species in this genus infect insects (''Diptera''). Taxonomy This genus was created by David Keilin in 1914.Keilin, D., 1914: Une nouvelle Schizogregarine, ''Cau ...

'' with five species and ''

Tipulocystis ''Tipulocystis'' is a genus of parasitic alveolates of the phylum Apicomplexa. Species in this genus infect insects (''Diptera Flies are insects of the order Diptera, the name being derived from the Greek δι- ''di-'' "two", and πτε ...

'' with one. The type species is '' Caulleryellida aphiochaetae''.

Lifecycle

Species in the family are generally spread by the oral-faecal route. Replication occurs in the gut. Development is extracellular. The parasites develop attached to the host cell by an epimerite. Merogony occurs when nuclei are peripheral within the cell. The

merozoite Apicomplexans, a group of intracellular parasites, have life cycle stages that allow them to survive the wide variety of environments they are exposed to during their complex life cycle. Each stage in the life cycle of an apicomplexan organism is ...

s form a bouquet structure around the parent cell. The gamonts are elongated with an anterior neck. The gametes have similar morphology. The gametocysts give rise to one to eight

oocyst Apicomplexans, a group of intracellular parasites, have life cycle stages that allow them to survive the wide variety of environments they are exposed to during their complex life cycle. Each stage in the life cycle of an apicomplexan organism i ...

References

{{Taxonbar, from=Q16975564 Apicomplexa families