| abstract | Rhagidia varia sp.n., Poecilophysis extraneostella sp.n., and Foveacheles paralleloseta sp.n. are described as new species. Poecilophysis wolmsdorfensis (Willmann) and Rhagidia diversicolor (C. L. Koch) are reported from the Nearctic region for the first time. Troglophilic Robustocheles hilli (Strandtmann) has been the most abundant and common species collected in the caves. Other species found in caves were Foveacheles tuktoyaktukensis Zacharda, Poecilophysis pratensis (C. L. Koch) and P. weyerensis (Packard). |