Haemaphysalis (Kaiseriana) Mageshimaensis Sp.N. (Ixodoidea: Ixodidae), A Japanese Deer Parasite with Bisexual and Parthenogenetic Reproduction.

摘要

Haemaphysalis (Kaiseriana) mageshimaensis sp.n., a member of the H. (K.) bispinosa group, is described from males, females, nymphs, and larvae from pasture vegetation (and laboratory-reared) from Mage Island in Kagoshima Prefecture, Japan. The sika deer, which is common on Mage Island, appears to be the original host. Most of the cattle on the island are infected by Theileria sp., which is probably transmitted by this tick. In the laboratory, the life cycle is completed in 93 to 108 days. Normal bisexual reproduction, with 1,000 to 1,500 eggs per female, almost 100 per cent larval hatching, and approximately equal numbers of F1-F3 males and females, was observed, as well as an appreciable though limited degree of true parthenogenetic reproduction, with few eggs, low larval hatching rate, absence of mating, and only female f1 adults. No males of this species mated with bisexual or parthenogenetic females of H. (K.) longicornis Neumann. Male longicornis mated with female mageshimaensis, but four or five days after mating almost all sperm had disappeared from female organs, the larval hatching rate was low, and all progeny consisted of mageshimaensis females.