| abstract | The family Hypoderatidae Murray (Acari, Astigmata) now comprises, including the new taxa descirbed herein, 68 species or subspecies grouped in 30 genera or subgenera. In the present paper we describe the life cycle of a seecond species Phalacrodectes whartoni Fain, 1967 and we add new data on the life cycle of Neottialges (Pelecanectes) evansi Fain, 1966. The following new taxa are described from adults, from a nest of a cattle egret, bubulcus ibis, in Panama: Phalacrodectes panamensis n.sp., Neottialges (Heronidectes) mendezi n.subg., n.sp., Neottialges (Ardeidectes ibis n.subg., n.sp. and bubulcodectes brevitarsis n.g. n.sp. An additional new species Hypodectes (Hypodectoides) samsinaki is described from the nest of a wild pigeon from Czechoslovakia. A key to the adult forms is given and the evolution of this group of mites is discussed. |