Abstract
Two new monobasic genera of the family Hypoderatidae are described from the Glossy Swiftlet Collocalia esculenta (Linnaeus) and its nests: Apodidectes gen. nov. with the type species Apodidectes verrucosus sp. nov. and Collocalidectes gen. nov. with the type species Acarus collocaliae Bernstein, 1857. The description of Ap. verrucosus includes descriptions of all stages of the life cycle. For Collocalidectes collocaliae, previously known from only the heteromorph deutonymph (hypopus), adults and tritonymph are described for the first time. The two new genera constitute a peculiar group within Hypoderatidae by having a unique structure of proral setae in adults. In contrast to other hypoderatid genera having claw‐like proral setae, in Apodidectes and Collocalidectes, these setae are very thin, slightly flattened (i.e. similar in structure to unguinal setae of the same tarsi) and tightly pressed to the ventral surface of the ambulacral stalk. Morphological peculiarities of the genera Apodidectes and Collocalidectes and ontogenetic changes of idiosomal and leg chaetotaxy in Ap. verrucosus are discussed. The genus Colobathriglyphus Fain and Nadchatram, 1983 is formally transferred to the Hypoderatidae from the Acaridae, and the subfamily Colobathriglyphinae syn. nov. is placed in synonymy with Hypoderatinae. http://zoobank.org/urn:lsid:zoobank.org:pub:05795E84-D62A-40F5-AB8B-483CFB271F64
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