Résumé
The phytoseiid mite Ragusaseius ferraguti n. gen., n. sp. is described from the primary Atlantic Forest Mata Atlantica in Brazil, based on specimens collected on Cyphomandra calycina Sendth (Solanaceae). This mite is unique in the following combination of characters: setae J3 and J4 present; dorsal setae medium to long, except for J5, and serrated; ventrianal shield anteriorly eroded, containing only JV2 and occasionally ZV2 in addition to circumanal setae.