Hymenoptera from caves of Bakony Mountains, Hungary - an overlooked taxon in hypogean research Author Vas, Zoltan Author Kutasi, Csaba text Subterranean Biology 2016 19 31 39 http://dx.doi.org/10.3897/subtbiol.19.10016 journal article http://dx.doi.org/10.3897/subtbiol.19.10016 1314-2615-19-31 360376C9F75D4C30957CC8C695C344CC Taxon classification Animalia Hymenoptera Ichneumonidae Aclastus longicauda Horstmann, 1980 Material examined. Hungary, Veszprem County, Balatonfuered , Loczy Cave, Felso-terem [Upper-room], DFE: 38 m, 11 June 2011-25 September 2011, leg. Zs. Csermak , 1 ♀. Remarks . First record in the Hungarian fauna. This species has been described from Sweden (Horstmann, 1980), and besides Sweden it has only been reported from Finland (Jussila, 1989) so far. The presence of this species in Hungary suggests a much more widespread distribution within Europe than it was apparent before. Additionally, this species is first reported here in association with hypogean environment. No particular host of Aclastus longicauda is known; however, based on data from close relatives it might be an idiobiont parasitoid of spider egg sacs (e.g. Amaurobiidae , Linyphiidae , Micryphantidae ) ( Horstmann 1980 , Finch 2005 , Yu et al. 2012 ). This phenomenon also could explain its occurrence in caves: it may search for spider eggs sacs there.