Uherkovich Ákos: A Dráva mente állatvilága II. (Dunántúli Dolgozatok Természettudományi Sorozat 9., 1998)

Ábrahám L.: A Duna-Dráva Nemzeti Park recésszárnyú-alkatú (Megaloptera, Raphidioptera, Neuroptera) faunájának természetvédelmi vizsgálata, II. - Natural protection studies on the neuropteroids (Megaloptera, Raphidioptera, Neuroptera) fauna of the Duna-Dráva National Park, Hungary II.

278 DUNÁNTÚLI DOLGOZATOK (A) TERMÉSZETTUDOMÁNYI SOROZAT 9. (1998) Fig. 3. Distribution of Hemerobius marginatus in Hungary. 3. ábra. A Hemerobius marginatus hazai elterjedése. small running streams, brooks and streamlets. In those places, however, it occurs only in shady forests that grow along the waters. Hemerobius marginatus Stephens, 1836. Siberian faunal element that occurs in Hungary mostly in mountains. In lower areas it is very rarely found (ÁBRAHÁM 1992). The distribution of this species is shown in Fig. 3. Its occurrence near the Dráva means at the same time the southern limits of its occurrence. It lives in deciduous forests; its characteristic habitats are beech forests and submontane oak - hornbeam stands. I collected its individual near rivers in softwood stands (Cornus) by sweeping the foliage of bushes. Chrysoperla carnea (Stephens, 1836) complex. The species is considered cosmopolitan, occurring throughout Europe in natural and planted agricultural communities; it is dominant and euryoecious (ASPÖCK et al 1980). The description of the species occurred using individuals originating from Great Britain. Based on its large area of distribution many synonyms have been published, that were then collected and summarised by BROOKS and BARNARD (1990). These were so-called morphological species. Partly due to its predominant role in biocoenoses the species got into the centre of interests in many fields of research. So the researchers studied the interesting morphological differences found in external and internal genitals (LERAUT 1991, SÉMÉRIA 1992, THIERRY et al 1992). Its reproductive isolation and genetic relationships of natural populations were subjects of electrophoretic studies (BULLINI, SBORDONI 1980, CIANCHI, BULLINI 1992). Besides, the courting behaviour of males with special interest to the vibrations and acoustic signals were described and analysed by HENRY (1983). Many studies were conducted on its development, egglaying and larval instars, on factors determining and influencing the