A natural epizootic of a coccidian in a population of the Egyptian alfalfa weevil, Hypera brunneipennis, and the alfalfa weevil, H. postica

Dispersion of adeleid oocysts by vertebrates in Gran Canaria, Spain: report and literature review

“…Previous studies on wild invertebrates demonstrate a prevalence of Adelina spp. between 3 and 27% (Merritt et al, 1975; El-Sufty and Boraei, 1986, 1989). What is not clear is if the low prevalence studies can be explained by selection failure of the sampled arthropods, due to death of infected immature stages.…”

“…The life cycle of Adelina spp. occurs inside the arthropod body cavity, with sporozoites piercing the gut to access the coelom (Merritt et al, 1975). Asexual division takes place, forming two generations of merogonies (as described for A. cryptocerci) followed, after release of the merozoites into fatty tissue, by sexual reproduction of gametoblasts (Yarwood, 1937).…”

“…Finally, the adeleids begin to occupy the majority of the coelom and the rest of organs including muscles, resulting in death of the insect (Bhatia, 1937; Park and Frank, 1950; El-Sufty and Boraei, 1989). Other authors report secondary infections with gut bacteria as a cause of death in invertebrates, after penetration through the gut wall by the coccidia (Merritt et al, 1975).…”