The known species of genus Corynoppia;C. kosarovi (Jeleva, 1962)is redescribed and a new subspecies Corynoppia andulau sakaryaensis ssp. nov. is described. An identification key for the species of genus Corynoppia Balogh, 1983 is also given.
Acarapis woodi (Rennie) is a tracheal mite of honeybees. The mites feed on bee haemolymph in the trachea and air sacs of adult honeybees. An infestation of these mites causes serious damage to bee colonies. The distribution of A. woodi mites among colonies of European honeybees, Apis mellifera, is worldwide, from Europe to South and North America. The first record of an infestation of A. woodi on A. mellifera in Japan was in 2010. In the same year, the infestation of Japanese native honeybees, Apis cerana japonica, by the mites was also recorded. Thereafter, only four records of A. woodi infestations among Japanese honeybees were issued by the Japanese Ministry of Agriculture, Forestry and Fisheries, and no further record of A. woodi infestations among European honeybees was reported until 2012. The number of records of A. woodi infestations seems much smaller than that of the actual infestations. To determine the accurate distribution of A. woodi in Japan, I investigated more than 350 colonies of Japanese honey bees and 50 colonies of European honey bees. The diagnosis of parasitic mite infestation was based on the dissection of the honeybees under a microscope. Mite-infested honeybees were found in Japanese honeybee colonies collected in middle and east Japan. No infestation was found in European honeybees. The reason why the infestation of European honeybees is much lower than that of Japanese honeybees is now under investigation, in part to identify ways to control parasitic mites on Japanese honeybees.
Females and males of Protogamasellus mica (Athias-Henriot, 1961) were collected from the soil of spinach-cultivated fields in greenhouses located in Hokkaido, northern Japan. This is not only the first record of the genus Protogamasellus Karg, 1962, in Japan but is also the first description of the P. mica male. The new Japanese name of “Kubiremayoidani” is proposed. Intraspecific variation was apparent in the lengths of the idiosoma and dorsal setae in females, and in the shape of the ventrianal shield in males.