The present paper comprises a systematic survey of the chigger mites (Acarina: Leeuwenhoekiidae) collected from bats and bat guano in Cuban caves in 1965-1985. Wagenaaria similis is recorded for the first time in Cuba. The first hosts known for Ischnothrombium diploctenum are noted. Antrohoekia inexpectala, g.n., sp. n., a parasite of bats, is described.
Two Stomylotrema Looss, 1900 species were found in storks and grebes in Cuba. Five specimens of Stomylotrema bijugum Braun, 1901 were recovered from the roseate spoonbill, Ajaia ajaja (Allen, 1942) (Ciconiiformes) while six Stomylotrema vicarium Braun, 1901 were found in the little blue heron, Egretta (syn. Florida) caerulea (L.) (Ciconiiformes) and the least grebe Podiceps dominicus dominicus (I,.) (Podicipediformes). The taxa represent new host and geographical records. The problem of morphological variation within the genus Stomylotrema is briefly analysed in the discussion.