S. Mahunka szerk.: Folia Entomologica Hungarica 27/1. (Budapest, 1974)

FOLIA ENTOMOLOGICA HUNGARICA ROVARTANI KÖZLEMÉNYEK (SERIES NOVA) XXVII. 1. 1974. P- 167-176 Dedicated to Dr. G. Szelényi on his 70th birthday Dipterological studies in a Hungarian horse farm (Diptera) By L. PAPP (Received January 5, 1974) Abstract. - Data of more than 24000 fly specimens collected in horse stables, in corrals and on adjacent horse droppings or reared from manure samples at Apajpuszta (near Dömsöd, Com. Pest, Hungary); evaluation of the data concerning hygiene, sampling methodology and ecology; description of

Copromyza (Borborillus) szelenyii sp.n. While studying some dipterological problems of large-scale farming, fly collections and personal observations were made on the horse farm of the Kiskunság State Estate, Apajpuszta, on 28 Sept., 1972, 24 May, 10 August and 6 Sept., 1973. The manure samples collected were placed in a thermostat, the emerged flies were taken daily and, with some exceptions, subsequently determined. 24159 fly exemplars belonging to 70 species were obtained, among them specimens of two species new to science. It can be considered an important result that half of the species (35 sp.) was also reared from the comparatively few manure samples. The dominance of the sphaerocerid flies is striking in every case as regards specific or individual numbers. As explaned below, my data are incomplete or hardly évaluable despite their great number. However, there are no traces of similar investigations in literature (HUSSEY' s/1

957/valuable work refers merely to the sphaerocerids and deals only with biological data)

. Still, the data given below may - as preliminary results - instigate further research. Horse stables wherein horses were separated in stalls have not been studied, because the hygienic problems extant in such stables are essentially the same as those in cattle stables although the qualitative and quantitative compositions of the fly community are somewhat different. Fly control in such stables is the same as the method applied in