Abstract
Pictorial points for the differentiation of ectoparasites on dog skin were described. Ectoparasites are devided into arachnids and insects. Arachnids contain ticks and mites. The important ticks are Ixodidae and mites include Prostigmata and Astigmata (Demodex and Sarcoptes). Insects should be examined for wings. The important insects with no wings are bloodsucking lices, chewing lices, and freas.
