Reference

P. S. Gorbunov (1987): Endoparasitic flagellates of the genus Crithidia (Trypanosomatidae, Zoo-mastigophorea) from the alimentary tract of bumble bees. [Ru, en; 9 figs., 20 refs. Date: 20.XI.1987]. – Zool. Zhurnal (Moscow) – 66 (12): 1775 - 1780.