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Scientific classification
Domain: Eukaryota
Kingdom: Chromalveolata
Superphylum: Alveolata
Phylum: Apicomplexa
Levine 1970
Class: Conoidasida
Levine 1988
Subclass: Gregarinasina
Dufour 1828
Order: Neogregarinorida
Grassé & Schrével 1953
Family: Gigaductidae
Filipponi 1948


The Gigaductidae are a family of parasitic protozoa in the phylum Apicomplexa. Species in this family infect Coleoptera (beetles) and Orthoptera (butterflies).


This family was created in 1948 by Filipponi.


One genus is placed in this family - Gigaductus. The type species in this family (and genus) is Gigaductus parvus, which was described by Crawley in 1903.

Several other species in this family have described and these include Gigaductus aficanus, Gigaductus agoni, Gigaductus americanus, and Gigaductus anchi.


The species in this family are spread by the oral-faecal route. Development occurs in the epithelial cells of the gut or rarely in the Malpighian tubules. The gamontocysts are enclosed in a thick gelatinous capsule. Syzygy and encystment occur in the lumen of the gut (or tubule). About 25-30 spores are generated from each gametocyst.