Grenieria bicaudata Dabert & Atyeo 1997

Hernandes, Fabio Akashi & Brito, Guilherme R. R., 2022, Feather mites (Acariformes: Astigmata) of the brown noddy, Anous stolidus (L.) (Charadriiformes: Laridae), with description of two new species from Brazil, Acarologia 62 (2), pp. 317-331 : 328

Grenieria bicaudata Dabert & Atyeo 1997

( Fig. 8)

Material examined — 9 males, 5 females ex Anous stolidus stolidus (Linnaeus, 1758) ( Charadriiformes : Laridae ), ( CAUFSC 00389), Praia do Campeche, Florianópolis, Santa Catarina, Brazil (lat -27.6893423 long -48.4811854), 27 Feb. 2021, R 3 Animal col.

Remarks — This species was described from Anous stolidus pileatus (Scopoli, 1786) from Hawaii ( Dabert and Atyeo 1997), and until this date remained the only feather mite reported from terns of the genus Anous Stephens. Grenieria bicaudata is herein reported for the first time after the original description. Syringobiids are normally found inside the quills, but may eventually be found outside of their normal habitat (e.g. Phyllochaeta spp. , Gaud and Atyeo 1996). The specimens reported herein were found on the surface of the feathers, rather than inside the quills.