• Mica Baranov & Alkhovik, 2001 † [Family: Athyrididae]
• Mica Budde-Lund, 1908 [Family: Porcellionidae]
• Mica Margulis, 1982 accepted as Pyrostephos Moser, 1925 [Family: Pyrostephidae]
• Mica Neckaja, 1952 † (uncertain) [Family: Ostracoda (awaiting allocation)]
• Mica Petrunkevitch, 1925 accepted as Micalula Strand, 1932 [Family: Salticidae]
• Mica tardus (Budde-Lund, 1885)
• Micadina Redtenbacher in Brunner & Redtenbacher, 1908 (uncertain)
• Micadophila Tsuneki, 1962 (uncertain)
• Micaela Werner, 1918 (uncertain)
• Micaelamys Ellerman, 1941
• Micaëlamys Ellerman, 1941 accepted as Micaelamys Ellerman, 1941
• Micagnostus Khairullina in Repina et al., 1975 †
• Micagrostis A.L. de Jussieu, 1824 accepted as Mibora Adanson, 1763
• Micaidelia Aristov, 2004 †
• Micalia Gray, 1845 accepted as Lerista Bell, 1833 [Family: Scincidae]
• Micalia Rafinesque, 1837 (uncertain) [Family: Scrophulariaceae]
• Micalula Strand, 1932
• Micalula longithorax (Petrunkevitch, 1925)
• Micambe Adanson, 1763 (uncertain)
• Micana Gray, 1858 (uncertain)
• Micandra Schatz in Staudinger, 1888
• Micandra cadmus Felder & Felder, 1865
• Micandra dignota Draudt, 1921
• Micandra platyptera Felder & Felder, 1865
• Micandra sapho Staudinger, 1888
• Micandra tongida Clench, 1970
• Micangshania Zhou in Li, Song, Zhou, Yang et al., 1975 † (uncertain)
• Micania accepted as Mikania Willdenow, 1803
• Micanitropis Namyatova & Cassis, 2021
• Micans Cossmann, 1899 † (unaccepted)
• Micantapex Iredale, 1936 accepted as Bathytoma Harris & Burrows, 1891
• Micantapex angustatus Powell, 1940 accepted as Kuroshioturris angustata (Powell, 1940)
• Micantapex finlayi Powell, 1940 accepted as Bathytoma murdochi Finlay, 1930
• Micantapex parengonius Dell, 1956 accepted as Bathytoma parengonius (Dell, 1956)
• Micantapex profundis Laseron, 1954 accepted as Bathytoma profundis (Laseron, 1954)
• Micantapex rhomboidalis (Tenison-Woods, 1879)
• Micantulina Anufriev, 1970 (uncertain)
• Micaplana Kato, 1937
• Micaplana misae Kato, 1937
• Micardia Butler, 1878
• Micardia argentata Butler, 1878
• Micardia argentoidea Berio, 1954
• Micardia ikoly Viette, 1982
• Micardia itremo Viette, 1982
• Micardia jezoensis Sugi, 1959
• Micardia munda Leech, 1900
• Micardia pulcherrima Moore, 1867
• Micardia pulchra Butler, 1878
• Micardia pulchrargenta Bryk, 1942
• Micardia quadrilinea Scriba, 1921
• Micardia simplicissima Berio, 1973
• Micardia terracottoides Berio, 1954
• Micardista Iredale, 1933
• Micarea E.M. Fries, 1825
• Micarea adnata Coppins, 1983
• Micarea alabastrites (Nyl.) Coppins, 1982
• Micarea assimilata (Nyl.) Coppins, 1983
• Micarea austroternaria Coppins & Kantvilas, 1990
• Micarea bacidiella sensu Vezda accepted as Micarea globulosella (Nyl.) Coppins, 1983
• Micarea bauschiana (Körb.) V. Wirth & Vezda, 1976
• Micarea beckhausii (Körb.) Vezda, 1977 accepted as Bacidia beckhausii Körb., 1860
• Micarea botryoides (Nyl.) Coppins, 1980
• Micarea chrysophthalma P. James, 1971 accepted as Chrysothrix chrysophthalma (P. James) P. James & J.R. Laundon, 1981
• Micarea cinerea (Schaer.) Hedl., 1892
• Micarea clavulifera (Nyl.) Coppins & P. James, 1980 accepted as Psilolechia clavulifera (Nyl.) Coppins, 1983
• Micarea confusula (Nyl.) Hedl., 1892 accepted as Micarea subnigrata (Nyl.) Coppins & H. Kilias, 1981
• Micarea contexta Hedl., 1892
• Micarea coppinsii Tønsberg, 1992
• Micarea crassipes (Th. Fr.) Coppins, 1983
• Micarea curvata Coppins, 1983
• Micarea deminuta Coppins, 1995
• Micarea denigrata (Fr.) Hedl., 1892
• Micarea elachista (Körb.) Coppins & R. Sant., 1983
• Micarea erratica (Körb.) Hertel, Rambold & Pietschm., 1989
• Micarea excipulata Coppins, 1988 accepted as Micarea lynceola (Th. Fr.) Palice, 1999
• Micarea eximia Hedl., 1892
• Micarea flagellispora Coppins & Kantvilas, 1990
• Micarea gelatinosa (Flörke) Brodo, 1967 accepted as Trapeliopsis gelatinosa (Flörke) Coppins & P. James, 1984
• Micarea globularis (Ach. ex Nyl.) Hedl., 1892 accepted as Micarea melaena (Nyl.) Hedl., 1892
• Micarea globulosella (Nyl.) Coppins, 1983
• Micarea gomphillacea (Nyl.) Vezda, 1970 accepted as Micarea lignaria (Ach.) Hedl., 1892
• Micarea granulans (Vain.) Timdal, 1991 accepted as Micarea submilliaria (Nyl.) Coppins, 1994
• Micarea hedlundii Coppins, 1983
• Micarea incrassata Hedl., 1892
• Micarea inquinans (Tul.) Coppins, 1992
• Micarea intersociella (Stirt.) Coppins, 1994
• Micarea intrusa (Th. Fr.) Coppins & H. Kilias, 1983 accepted as Carbonea intrusa (Th. Fr.) Rambold & Triebel, 1997
• Micarea isabellina Coppins & Kantvilas, 1990
• Micarea lapillicola (Vain.) Coppins & Muhr, 1997
• Micarea leprosa P. James, 1971 accepted as Vezdaea leprosa (P. James) Vezda, 1975
• Micarea leprosula (Th. Fr.) Coppins & A. Fletcher, 1975
• Micarea lignaria (Ach.) Hedl., 1892
• Micarea lithinella (Nyl.) Hedl., 1892
• Micarea lutulata (Nyl.) Coppins, 1980
• Micarea lynceola (Th. Fr.) Palice, 1999
• Micarea marginata Coppins & Muhr, 1988
• Micarea melaena (Nyl.) Hedl., 1892
• Micarea micrococca (Körb.) Gams ex Coppins, 2002
• Micarea minuscula (Anzi) Vezda, 1976 accepted as Bacidia beckhausii Körb., 1860
• Micarea misella (Nyl.) Hedl., 1892