The first record of Beauveria bassiana (Deuteromycetes) on the hibernating pupae of Cameraria ohridella (Lepidoptera: Gracillariidae)

Samples of the horse chestnut leaves with C. ohridella pupae were collected in autumn at Ceske Budejovice. The leaves were dissected and the pupae were individually placed into the 23°C and 95% R.H. Development of mycosis was frequently observed but only a few pupae were infected by B. bassiana. The strains of the fungus were isolated from individual pupae and deposited in Culture Collection of Entomopathogenic Fungi Olesna.