Ingrassia Oudemans, 1905

Stefan, Laura M., Gómez-Díaz, Elena & Mironov, Sergey, 2013, Three new species of the feather mite subfamily Ingrassiinae (Acariformes: Xolalgidae) from shearwaters and petrels (Procellariiformes: Procellariidae), Zootaxa 3682 (1), pp. 105-120 : 106

Genus Ingrassia Oudemans, 1905

Type species: Megninia veligera Oudemans, 1904 by original designation.

Ingrassia is the most species-rich genus within the subfamily Ingrassiinae , including 26 species up to now ( Černý 1967; Gaud 1972; Gaud & Atyeo 1981a; Chirov & Mironov 1990; Dabert & Ehrnsberger 1991; Vasyukova & Mironov 1991; Dabert 2000; Mironov & Palma 2006; Mironov and Proctor 2008). Its representatives have been recorded on hosts from 6 orders of aquatic birds: Anseriformes, Charadriiformes, Pelecaniformes, Podicipediformes, Procellariiformes and Sphenisciformes.

The majority of currently known Ingrassia species (19) are associated with charadriiform avian hosts, with only few species described from other avian orders mentioned above. The most extensive studies of diversity of Ingrassia have been carried out in the Palaearctic region ( Vitzthum 1921; Dubinin 1949; Gaud 1974; Chirov & Mironov 1990; Vasyukova & Mironov 1991; Dabert 2000) and in Africa ( Gaud 1972). Identification keys to species of Ingrassia are available only for those associated with Charadriiformes from Africa ( Gaud 1972) and Northern Eurasia ( Chirov & Mironov 1990; Vasyukova & Mironov 1991). To date, only four species of Ingrassia are known from procellariiform birds: Ingrassia dubinini ( Černý 1967) from Procellariidae ( Puffinus spp.), I. oceanica ( Vitzthum 1921) and I. oceanodromae ( Černý 1967) from Hydrobatidae ( Hydrobates pelagicus Linnaeus and Oceanodroma leucorhoa Vieillot , respectively) and I. antarctica ( Gaud 1952) from Pelecanoididae ( Pelecanoides georgicus Murphy and Harper ). Most species known from avian hosts other than charadriiforms are need in of modern redescriptions.