Hormone-bound-reproduction
Guides
Cediopsylla
Cediopsylla is a genus of fleas in the family Pulicidae, subfamily Spilopsyllinae. The genus includes species that are 'hormone bound' parasites, with reproductive cycles synchronized to host breeding biology. Cediopsylla simplex, the only well-documented species, parasitizes rabbits and exhibits maturation and breeding patterns controlled by host reproductive hormones. Female fleas mature on pregnant hosts and nestlings, but not on non-pregnant hosts.
Cediopsylla simplex
Cediopsylla simplex is a flea species in the family Pulicidae. Its reproductive biology is tightly coupled to host hormonal cycles, with female maturation occurring specifically on pregnant rabbits and nestlings rather than on estrous does. The species has been described as "hormone bound," indicating that its breeding cycle is controlled by and synchronized with the breeding cycle of its host. This physiological dependency represents a specialized adaptation among fleas.