S. Mahunka szerk.: Folia Entomologica Hungarica 59. (Budapest, 1998)

As Fig. 2 shows, there is a progressive superiority of the Siberian elements over the primarily scattered Mediterranean species pressing up to higher zones. While the ratio of the Siberian and Mediterranean elements is nearly 1:1 in the forested steppe zone, while it becomes almost 1: 2 in the mountainous zone. This change is more expressed in the case of species in the categories 3-4, i.e. species of the "basic fauna". Accordingly, the differential species of the forested steppe zone are the species of forested steppe and steppe from which the following are important in particular (Table 3): Table 3. Vertical distributions of important Orthoptera species in the different major plant associations (I: forested steppe (collin) zone, II: submountainous zone, III: mountainous zone) I II III Phaneroptera nana Isophya modesta Conocephalus discolor Tesselana vaittata Pachytrachys gracilis Rhacocleis germanica Oecanthus pellucens Melanogryllus desertus Modicogryl lus fron ta I is Tetrix undulata Tetrix nutans Paracaloptenus caloptenoides Acrida hungarica Aiolopus thalassinus Sphingonotus coerulans Mecosthetus grossus Dociostaurus maroccanus Dociostaurus hrevicollis Dirschius petraeus Stenobothrus nigromaculatus Stenobothrodes eurasius Myrmeleotettix maculatus Glyptobothrus vagans Glyptobothrus mollis Euchorthippus declivus Leptophyes discoidalis Tettigonia cantans Metrioptera brachyptera Roeseliana roeseli Pholidoptera aptera Podisma pedestris Arcyptera fusca Chrysochraon dispar Stenobothrus stigmaticus Stauroderus scalaris Phaneroptera nana - As a result of its recent expansion, northern boundary of its spreading is in the Bükk Mountains (Nagy 1948) (Fig. 3). Isophya modesta - Recently in the middle part of the Carpathian Basin, it occurs only sporadically in isolated habitats, probably as a relict of the postglacial warming up (Nagy 1981) (Fig. 4). Paracaloptenus caloptenoides - The species with Balkan spreading center occurs primarly on rocky grass of southern exposure and on slope steppe (Fig. 5).