SEASONAL FLIGHT ACTIVITY OF PLANIPENNIA SPECIES AT THE DEVINSKA-KOBYLA HILL (WEST CARPATHIANS)

During 1994 a total of 544 individuals out of 35 Planipennia species w ere trapped by two Malaise traps at the Devinska Kobyla hill in wester n Slovakia. Here Hemerobius humulinus, Wesmaelius subnebulosus and Con iopteryx esbenpeterseni were eudominant and Chrysoperla carnea, Microm us variegatus and Semidalis aleyrodiformis were dominant. Apart from t hat, 3 subdominant, 4 recedent and 22 subrecedent species were found i n the researched area. All dominant species were found to produce two generations per year. Flight activity in the 1st generation males of d ominant species predominated their females significantly. The sexual i ndex has been on a steady increase from April to August. Coniopteryx l oipetsederi and C. tjederi have not been found in Slovakia before.