O nahoždenij v SSSR žuka Platypsyllus castoris Rits. (Coleoptera Silphidae) parasitarujuščego na bobre

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith