Paykullia maculata can reach a length of 5–6 millimetres (0.20–0.24 in). The adults of this species are very variable, especially in size and in the pattern of wing markings.[9] These small flies have a shining black body with bristly hair. The apical half of the wings show darkened veins and costal area.[10][11][page needed][12][page needed]
Biology
Adults can be seen from May to September, with several generations. Usually they rest or run around on stones or among the foliage.[9] The larvae are intestinal parasites of Porcellio scaber and Oniscus asellus,[10] and woodlice from Protracheoniscus and Trachelipus genera.[9]
^ abRobineau-Desvoidy, André Jean Baptiste (1830). "Essai sur les myodaires". Mémoires presentés à L'Institut des Sciences, Lettres et Arts, par divers savants et lus dans ses assemblées: Sciences, Mathématiques et Physique. 2 (2): 1–813. Retrieved 15 July 2018.
^Bei-Bienko, G.Y. & Steyskal, G.C. (1988) Keys to the Insects of the European Part of the USSR, Volume V: Diptera and Siphonaptera, Parts I, II. Amerind Publishing Co., New Delhi.ISBN81-205-0080-6ISBN81-205-0081-4