S. Mahunka szerk.: Folia Entomologica Hungarica 43/1. (Budapest, 1982)

Species 1977 1978 1979 1980 Species D p.c. DG D p.c. DG D p.c. DG D p.c. DG Jassidaeus lugubris Sign. 0.51 + 0.21 + 0.64 + 1.69 1 Kelisia brucki Fieb. 0.26 + K. irregulata Haupt 0.51 + K. perrieri Rib. 0.26 + 0.13 + K. vittipennis Sahib. 0.26 3.15 1 0.85 + Kosswigianella spinosa Fieb. 0.21 + 3.81 1 Muirodelphax aubei Perr. 0.21 + Ribautodelphax albostriatus Fieb. 9.46 2 14.51 2 18.44 3 5.90 2 Struebingianella elegantula Boh. 0.21 + S. palliceps Horv. 0.26 + Toya minuscula Horv. 0.53 + Weidnerianella marginata Fall. 0.26 + 0.42 + Xanthodelphax stramineus Stal. 1.67 1 2.10 1 Other Delphacidae 2.12 4.19 Achilidae: Cixidia marginicollis Spin. 0.21 + Cercopidae: Lepyronia coleoptrata L. 0.9 + 2.31 1 0.99 + 3.65 1 Neophilaenus infumatus Hpt. 0.26 + 0.28 + 0.38 + N. lineatus L. 1.37 1 0.63 + 2.61 1 3.73 1 Philaenus spumarius L. 3.35 1 3.89 1 0.89 + Issidae: Ommatidiotus incospicuus Stal. 0.26 + 0.77 + Tettigometridae: Tettigometra atrata Fieb. 1.05 1 0.21 + 0.27 + Tropiduchidae: Trypetimorpha fenestrata Costa 2.06 1 0.42 + 1.15 1 D = dominance, DG = dominance group (+: below 1 p.c.; 1: 1-4 p.c.; 2: 4-16 p.c.; 3: 16-36 p.c.; 4: 36-64 p.c.; 5: 64-100 p.c.) the 17.45 p.c. of the species wintering in larval form and the relatively lower rate of the species wintering as adults (14.27 p.c.) too. 55.53 p.c. of the all species are univoltine and 44.43 p.c. are bivoltine. These values are 57.69 p.c. resp. 42.31 p.c. on the sand hills. III. Division of the occurring species according to ecological valence 1) Stenotopic species (X) living in xerothermous biotopes, in Central Europe they occur only in dry grasslands: A

rbor

idia parvula

, Arocepha

lu

s lanquidu

s, Artianus inter

s

titialis

, Batra- com

o

rphus irroratus

, Dorat

ur

a exilis

, Goniagnathus brevis

, Hecalus glauce

scens, Jassargus obtusivalvis, Mendrausus pauxillus, Neoaliturus fenestratus, Paluda preyssleri, P. vitripennis. Psammo- tettix provinciális

, P. striatus

, Recilia schmidtgeni, Ulopa trivia, Zyginidia pullula, Jassidaeus lu gubris, Kelisia brucki

, K. irregulata, K. perrieri, Muirodelphax aubei, Toya minuscula, Neophilaenus infumatus, Ommatidiotus incospicuus, Tettigometra atrata. 2) Eurytopic species a) Species living in xerophilous and mesophilous biotopes but preferring the former (X-M;: