Feather mites (Acariformes, Astigmata) from marine birds of the Barton Peninsula (King George Island, Antarctica), with descriptions of two new species Author Han, Yeong-Deok https://orcid.org/0000-0002-6625-8966 Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea & Restoration Assessment Team, Research Center for Endangered Species, National Institute of Ecology, Gowol-gil 23, Yeongyang-gun, 36531, Republic of Korea Author Mironov, Sergey V. Zoological Institute, Russian Academy of Sciences, Universitetskaya embankment 1, Saint-Petersburg, 199034, Russia Author Kim, Jeong-Hoon Korea Polar Research Institute, Yeonsu-gu, Incheon 21990, Republic of Korea jhkim94@kopri.re.kr Author Min, Gi-Sik Department of Biological Sciences, Inha University, Incheon 22212, Republic of Korea mingisik@inha.ac.kr text ZooKeys 2021 2021-10-04 1061 109 130 http://dx.doi.org/10.3897/zookeys.1061.71212 journal article http://dx.doi.org/10.3897/zookeys.1061.71212 1313-2970-1061-109 5239C96059FE4C04B8BF1D8FC33B4C75 621AC222512E581FAEE2DE9894D5E5D4 Subgenus Alloptes Sternalloptes Mironov, 1992 Notes. The subgenus Alloptes Sternalloptes includes about 20 species and is characterized by the following features ( Kivganov and Mironov 1992 ; Mironov 1996 ): in both sexes, seta mG of genu II is shortspine-like with widely rounded apex; in males, the opisthosoma is triangular, gradually narrowed posteriorly and with noticeable terminal enlargement, idiosomal setae h3 are present or absent, setae ps2 are strongly reduced; in females, the opisthosoma with well-developed opisthosomal lobes, idiosomal setae ps1 and f2 are absent. Common hosts of the subgenus Alloptes Sternalloptes are birds of the families Laridae and Stercorariidae in the order Charadriiformes ( Gaud 1976 ; Vasyukova and Mironov 1991 ; Kivganov and Mironov 1992 ; Mironov and Kivganov 1993 ).