Distribution and ecology of Ruspolia nitidula (SCOPOLI 1786) and Aiolopus thalassinus (FABRICIUS 1781) (Orthoptera) in Slovakia Author Krištín, A. Author Kaňuch, P. Author Sárossy, M. text Linzer biologische Beiträge 2007 2007-07-23 39 1 451 461 journal article 10.5281/zenodo.5409784 0253-116X 5409784 Aiolopus thalassinus (FABRICIUS 1781) Distribution in Slovakia Before 1962, this species had been found in Slovakia only at 9 identified localities ( PUNGUR 1899 , SCHNEEBERG 1931, GULIČKA 1954 , 1967 , MAŘAN 1954 ). Until 2000, there were no further published data on its occurrence. In 2000-2006 suitable localities were mapped more intensively, and we found this species at 35 localities (we confirmed pre-1962 findings in three localities). Summarizing all known published and our unpublished data, the species had been found in a total of 41 localities in 29 squares of the Slovak Fauna Databank (6.7 % of all squares, Fig. 4 , Appendix 2). Like the previous species, the increase in known localities is more probably the result of intensive research being carried out at dusk, when this species is most active (cf. GULIČKA 1954 ) than an indication of a northward spread ( KRIŠTÍN et al. 2007 ).