S. Mahunka szerk.: Folia Entomologica Hungarica 59. (Budapest, 1998)
be rare at all. I have been able to collect more specimens of this species than of M. testacea, which is regarded as one of the most common species of Myopa. I collected many specimens between April 9th and May 27th in Ócsa, Budakeszi, Budaörs and the Pilis Mountains. Myopa morio Meigen, 1804 According to Chvála M. morio is very rare. In the collection of the Hungarian Natural History Museum of Budapest there are only two specimens. But in 1996 this species did not seem to be very rare. I collected the first specimen, a male, on April 18' h 1996 in Inárcs on a flower of Euphorbia. Because of their small size and their blackish colour, I believed to have caught a Thecophora, which is quite out of the question considering the time of the year. Only after looking more closely, did I realize that it was a Myopa. Within two weeks I collected a beautiful series (7 males and 3 females) in the Pilis Mountains, not far from Pilisszentlászló, on Cruciferae. Furthermore, I saw a specimen on a flower of a plum-tree, but it escaped from my net. I was able to observe the flies for some time. Deep within the bush of flowers, close to the ground, I could see some couples in copula. It was relatively easy to collect them since they appeared to be too occupied to be alert. Myopa occulta Wiedemann in Meigen, 1824 M. occulta may be compared with M. morio; both are small and blackish conopids, which may explain that they seem rarer than they actually are. While M. morio is collected throughout spring, M. occulta seems to be rather a summer species, which is only occasionally collected earlier in the year. My only specimen is a male from Ságvár. I collected it by sweeping Labiatae. I believed for some time to have caught an ordinary Thecophora sp., which was very common on that occasion. I believed that the species is rare, yet in the collection of the Hungarian Natural History Museum of Budapest I found nine specimens. Most of them were collected many years ago. Myopa polystigma Rondani, 1857 In the field M. polystigma may be mistaken either for a M. tesselatipennis or M. extricata, because all three species are collected in the same time of spring and all three have strongly marked wings. The markings on the wings of this species are particularly strong, but the best way to recognize the species is to check whether the fly has bristles on its mesopleuron, which are missing from the other species. Among the Myopa species flying in spring this species is the rarer one. The four specimens I collected, 3 males and 1 female, are all from the Pilis and were taken from blossoming fruit-trees and Cruciferae. Myopa stigma Meigen, 1824 It is not unlike a small, dark specimen of M. testacea, of which it is sometimes regarded as a subspecies. In the collection of the Hungarian Natural History Museum of
