Argasid ticks (Argasidae, Ixodoidea) of Czechoslovakia.
A revision of the species of Argasidae occurring in Czechoslovakia showed that 4 species of Argas occurred there. Argas reflexus (F.) was found to occur only in synanthropic breeding sites of feral pigeons in western Czechoslovakia, being observed in 6 of the urban sites examined. A. vulgaris Filippova is a species new to the fauna of Czechoslovakia and was found in 4 of the breeding sites of feral pigeons and rooks examined in the eastern part of the country. A. persicus (Oken) was found in only 1 of the hen-houses examined in southern Moravia and Slovakia, and the reduced incidence of this species is apparently due to the recent intensive application of insecticides in poultry houses. A. vespertilionis (Latr.) occurred mainly in association with bats inhabiting tree cavities and crevices in buildings, especially Pipistrellus pipistrellus; so far only the larvae of this tick were found actually on the bodies of the bats, in 4 localities.Study of the developmental cycle of A. reflexus and A. persicus in the laboratory confirmed data from the literature on these species in other countries. A key is given to the Czechoslovakian species of Argas, and all species are described, with notes on their distribution, biology and medical importance; since all species live in synanthropic sites, overcrowding, or desertion by primary hosts can result in their migration to human dwellings and occasional attacks on man. The possible occurrence of additional species of Argas and Ornithodoros in Czechoslovakia is discussed.