Abstract
Unlike the Piatra Craiului Massif, spectacular through its developed karstic relief, where multiple caves develop and also, scree and other types of mesovoid shallow substratum (MSS), named also shallow subterranean habitats (SSHs), Leaota Massif has not been studied nearly at all from the micro-fauna perspective, until recent years, in spite of the fact that it is an accessible Massif. Moreover, from the petrology perspective, Leaota Massif presents a much higher diversity compared to the Piatra Craiului Massif; on the surface of these mountains occur sedimentary, metamorphic and also igneous (magmatic) rocks. In fact, we can say that, in Leaota Massif, only the relief developed on sedimentary and metamorphic rocks is defining, as the igneous rocks occurs just as exception, located only as some intrusion. Due to these reasons, during the three years (2014-2016), we have collected the invertebrate fauna from two different type of lithosoil and scree (limestone and crystalline schists), considering that the geological diversity of the substrate leads to a specific diversity of invertebrates. Were identified for the first time in the Leaota Massif 248 species, among these, three new species for Romania's Fauna. This paper is part of a wider project that aims to study the connections between the type of lithologic substrate and the distribution of some zoocenotic components.