Arthropods (Acari, Siphonaptera, Heteroptera, Psocoptera) associated with Nyctalus noctula (Schreber, 1774) (Chiroptera: Vespertilionidae) in Southern Poland.

MATERIAL AND METHODS: From 101 specimens of Nyctalus noctula collected in Southern Poland during winter, 2637 arthropods of 13 species were obtained: Siphonaptera (3 species), Acari (8 species), Heteroptera (one species) and one specimen of Psocoptera. RESULTS AND DISCUSSION: The most numerous species were Macronyssus flavus (96.8% of the collection) and Steatonyssus spinosus (1.9% of the collection). Females of N. noctula were stronger infested than males. In females, the mean infestation by Macronyssus flavus was 30.8 and in males 23.5. Acanthophthirius noctulius and Nycteriglyphus tuerkorum are new to the fauna of Poland.