Development of the tick Ixodes laguri Ol. in the nests of the European suslik Citellus citellus (L.).

In field and laboratory conditions new data were obtained concerning the life cycle of the nidicolous tick Ixodes laguri. The development of this tick was studied in experimental nests of the European suslik and a two-year cycle of I. laguri was demonstrated. However, the materials obtained indicate that a longer cycle may be anticipated.