Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 59. (Budapest 1967)

Kovács, L.: Data to the knowledge of Hungarian Macrolepidoptera II. Comparative population studies on three arctiid species by the aid of light traps

succesfully shown by their operation, but it was found in areas where it had never been collected before. The summarizing and analysis of the data referring to its time of flight assisted in the final closing of the debate concerning its flying period — at least with respect to our home conditions. The amount of the incoming material, surpassing any up to now, had also made possible a thorough revision of the forms living within our borders. Distribution in Hungary. Most of its known localities are in the central part of the country, from the Mts. Vertes and the Lake Balaton to the Tisza. There are also some sites in the NVV around Sopron and along the Danube to Komárom, in the NE on the southern slopes of the central range, and in the central sections of the region beyond the Tisza. Its southern border lies between the Danube and the Tisza. There are still some larger, continuous areas in which it had not been found yet : between the mountainous region north of the Balaton and the western borders of the country, the area between the Balaton and the river Dráva, the zone between the central range and the border in the north, finally the northern and the southern regions beyond the Tisza (cf. Map 2). Map 2. Distribution of Chelis maculosa GERN, in Hungary Habitats. The species c an be found primarily in sandy districts : as well on the loose sand between the Danube and the Tisza as on the harder sand of the Balaton, the lake Velence, and the reaches of neighbouring rivers. Its larvae are also mostly collected in sandy areas (chiefly Peszér, Szigetszentmiklós, and Csepel). Otherwise, it occurs also on rocky inclines, especially on loose, crumbling dolomite (e.g. the hilly region around Buda). It is considerably rarer in ruderal places, though I myself had once found a larva on ploughed land, but this specimen might have got there from the nearby meadow of the mountain slope. The species was captured on abandoned alkali fields in Kenderes. Phenolojical data. The number of its generations was for a long time rather obscure. In Hungary, only one generation, the first, was bred from caterpillars,