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Studies of subterranean habitats in Slovakia revealed two rare linyphiid spider species new to the country, Pseudomaro aenigmaticus Denis, 1966 and Pseudocarorita thaleri (Saaristo, 1971). Pseudomaro aenigmaticus was recorded in the Malé Karpaty Mountains in western Slovakia. A male was captured in the limestone Plavecká Cave and a female was found in a granitoid mesovoid shallow substratum (MSS) in the Jajcajov jarok Valley. One pair of Pseudocarorita thaleri was found in the MSS in the Belinské skaly Nature Monument in the Cerová vrchovina Highland in southern Slovakia. This study also presents the characteristic habitus and habitats of the recorded spiders.

Tegenaria hasperi Chyzer, 1897 (Agelenidae) and Zoropsis spinimana (Dufour, 1820) (Zoropsidae) are recorded in Slovakia for the first time. Both species were collected in synanthropic habitats in Western Slovakia. Two males of T. hasperi were collected in the garden of a family house, and both sexes of Z. spinimana were recorded from the interiors and exteriors of buildings in four separate cities, representing the first record of the family Zoropsidae in Slovakia. This contribution provides additional information on the morphological characteristics of these species. Digital images of their habitus and copulatory organs, as well as their distribution and habitat preferences are included. [ABSTRACT FROM AUTHOR]