Dr. Kassai Tibor szerk.: Parasitologia Hungarica 1. (Budapest, 1968)

matter in freshly emptied bins; the average quantity proved to be about 100 ml in containers emptied daily, about 400 ml in those emptied every second day, and about 1000 ml in containers emptied in three-day periods.Prom the residue of 22 garbage bins examined, 1135 imagos, representing 14 synanthropous fly species, have hatched (Table). The material comprises species which live in the open and visit human habitations only occasionally (

Pannia leucosticta Meig., 23,2 $, Muscina pabulorum Pall., 1^0 $, Pannia manicata Meig., 0. 6 $, Muscina asslmilis Pall., 0,2 $), small flies which, though breeding as well in the open as around houses, do not visit foodstuffs (

Scatopse fuscipes Meig., 30,8$. Limosina plumosula Rond., 1,1 $, Sclara sp.

, 0,3 $), flies equally frequent in the open and around houses, that fly readily into homes (

Ophyra leucostoma Wied., 6,1 $, Calliphora vicina R.-D.. 0,3 $), and also a great number of flies that regularly visit and constantly breed within human dwellings (

Musca domestlca I., 18,2 $, Pannia canicularis 1 • » 9,0$, Drosophila funebris Pabr., 4,8$, Pannia scalarls Pabr., 3,4 $, Muscina stabulans Pall., 1,0 $). " The flies occurring in the city apartments of Budapest come mainly from this latter group. The frequency of emptying the containers influences quantitatively and qualitatively the character of the fly population developing in the residual matter of garbage containers. The less frequent the emptying, the more sediment remains in the bins, and in this case, not only more, but also larger-sized fly species will breed. The results of investigations also indicate that the present method of garbage collection in Budapest requires modification. Irodalom 1. / HEMIG,W.: 63.b. Muscidae. in lindner: Die Fliegen der palaearktischen Region, 7, 1-1110. 1955-1964 2. / KARL,0.

:

Zweiflügler oder Diptera, II. Muscidae. in Dahl: Die Tierwelt Deutschlands.

13, 1-232. 1928