S. Mahunka szerk.: Folia Entomologica Hungarica 56. (Budapest, 1995)

RESULTS During the sampling period we caught altogether 1560 individuals, which belong to 15 species. Since the adult individuals were identified only, thus the number of individuals (abundance) means not the total abundance of the caught grasshoppers, but only of the imagoes. The abundance of the grasshoppers was highest on the PL (686 individuals), on the other sites it was significantly lower. On the SM site the number of the captured individuals was 452 while on the AL site 310 individuals (Table 2). The changes of the abundances of the grasshoppers during summer on the AL and PL sites showed some similarity to each other, both of the communities had mid-summer abundance peaks and a very low early and late summer abundances. On the SM site the changes of the same were different, the highest abundance occurred in early summer (in July), and later the abundance was gradually declining until the end of the summer period (Fig. 1). Species Table 2. Orthoptera abundance in the three grasslands during all samplings Species Sampling sites ALI AL2AL3 AL PL 1 PL 2PL 3 PL M 1 M 2 M 3 M Acrididae Calliptamus italicus (Linnaeus, 1758) 0 0 1 1 0 0 0 0 0 0 0 0 Pezotettix giorne (Rossi, 1793) 0 27 7 34 0 0 3 3 0 0 0 0 Chortippus albomarginatus (DeGeer, 1773) 0 105 35 140 0 0 6 6 0 0 0 0 Ch. (Glyptobothrus) brunneus (Thunberg, 1815) 1 0 0 1 3 0 0 3 0 0 0 0 Chortippus dorsatus (Zetterstedt, 1821 ) 2 9 10 21 3 37 66 106 31 6 2 39 Ch. (Glyptobothrus) mollis (Charpentier, 1825) 0 1 0 1 0 0 0 0 0 0 0 0 Chortippus parallelus (Zetterstedt, 1821 ) 41 23 6 70 127 84 2 213 258 107 4 369 Euchortippus declivus (Brisout, 1848) 6 19 17 42 34 210 112 356 0 0 0 0 Omocestus ventralis Zetterstedt, 1821 0 0 0 0 1 2 3 6 0 0 0 0 Phaneropteridae Leptophyes albovittata (Kollar, 1838) 0 0 0 0 0 0 0 0 15 5 0 20 Plmneropterafalcata (Poda, 1761) 0 0 0 0 0 0 1 1 0 10 1 ] 21 Tettigoniidae Metrioptera (Roeseliana) roeselii Hagenbach, 1822 4 0 1 5 0 0 0 0 0 1 0 1 Oecanthidae Oecanthuspellucens (Scopoli, 1763) 0 0 0 0 0 0 0 0 0 0 1 1 Mantodea Mantis religiosa Linnaeus, 1758 0 0 0 0 0 1 0 1 0 0 1 1 Total abundance 315 695 452