S. Mahunka szerk.: Folia Entomologica Hungarica 59. (Budapest, 1998)

Pseudopomyza atrimana (Meigen, 1830) 1 female: Őriszentpéter (actually from the territory of I

spánk), Lugosi erdészház vegyes lucos - rothadó szénáról (on rotten hay) — 1980. VIII. 2., leg. (László) Papp. An intact specimen. The life-habits of this species is little known. Frey (1952) found adults gathering over rotten logs in afternoon. Merz (1997) collected a pair of this species on Zürichberg on fresh dead wood. The larvae of the related genera and species, Polypathomyia stackelbergi Krivosheina were found under the bark of rotting logs (Krivosheina 1979), so the habits of our species may be similar. CHIROPTEROMYZIDAE Last year dr. Martin Ebejer (Balzan, Malta) visited the Diptera collection of the Hungarian Natural History Museum and he was kind enought to identify all our unnamed material of Chyromyidae into genera and also determined numerous specimens. During his work he found two minute flies among the chyromyids, which did not belong to that family. After a short study they proved to belong to this family (they were misplaced probably some decades ago). This is a small family of peculias flies; their taxonomic position is much debated. Griffiths (1972) erected a family for the genus Chitopteromyza; some of the characters of the male genitalia he stressed and depicted support this rank. Gorodkov (1984) and Soós (1984) did not include it into the families of Heleomyzidae or Trixoscelididae, and so the two editors decided to print data of this genus together with Neossos Malloch, 1927 at the end of the same volume of the "Catalogue..." under "Genera of uncertain family position" (Papp 1984). McAlpine (1985) united taxa, which were separated into eight families in Griffiths' (1972), into one family, Heleomyzidae. He regarded Neossos and Chiropteromyza as synonymous without an analysis of the male genitalia of any of them. Gill and Peterson (1987) did mention this synonymy. The relationships of the heleomyzoid (or heleomyzid) higher taxa will be discussed in Volume 3 of the Contributions of a Manual of Palaearctic Diptera. I think, Chiropteromyza, or Chiropteromyza and Neossos, as separate genera deserve family rank. Chiropteromyza wegelii Frey, 1952 Material studied (HNHM): 1 male, 1 female: Balassagyarmat denevér guanóból kelt. 1969. VIL 28., leg. Mészáros F.(erenc) The Hungarian words "denevér guanóból kelt" (= emerged from bat guano) must not be stricktly interpreted. Actually Dr. Mészáros collected bat guano, from which animals emerged in a closed metal extractor under a very strong and heating electric bulb. The collectings were made under the roof of the of the building of the Chatolic Church at Balassagyarmat, where bats were living in that time. They are minute specimens: measurements in mm: body lenght 1.21 (male), 1.43 (female); wing length 1.49 (male), 1.67 (female); width of wing 0.57 (male), 0.60