[Ultrastructural surface properties in Columbicola columbae s. str. (Esthiopteridae, Mallophaga-Ischnocera) from domestic pigeons].

All post-embryonal stages of Columbicola columbae columbae (L.), the common parasite of pigeon, were investigated with regard to morphology, particularly surface ultrastructures. Many qualitative characters differing C. columbae s. str. from the investigated up to now species of Mallophaga were found in SEM. They are among others double lateral protuberances of head (clavus and clavulus) as well as parallel sculpture of pore organs on the last two segments of antennae. The structures showed at the photograms were interpreted with regard to their functions.