Incaglaia adusta tumens (F. Haas, 1955) Peru18 mm
Alopia adventicia M. von Kimakowicz, 1894
Synprosphyma aegrota Hunyadi & Szekeres, 2016
Pliciphaedusa aenea (H.A. Pilsbry, 1903) Japan, Kochi
Oospira aenigmatica E.R. Sykes, 1894 Indonesia, Sumatra23,2 mm
Macroptychia aethiopica J.R. Bourguignat, 1883 Ethiopia, Mt. Zeboul
Mesophaedusa affinis (H. Minato & A. Tada,1987) Japan
Macroptychia africana (J.C. Melvill& J.H. Ponsonby, 1899) South Africa, Natal7,5 mm
Quadriplicata aggesta (O. Böttger, 1878) Caucasus
Quadriplicata aggesta stauropolitana (O.W. Von Rosen, 1901) Caucasus15,2 mm
Medora agnata (L. Pfeiffer, 1842) Croatia16,9 mm
Medora agnata cognata (O. Böttger, 1877) Yugoslavia20,1 mm
Medora agnata delimaeformis H. Nordsieck, 1970 Croatia16,2 mm
Lindholmiella ahuiri J. Grego & M. Szekeres,2011 Laos, Houaphan32 mm
Megalophaedusa akiratadai H. Minato, 1978 Ajiro, Ehime, Japan
Heterozaptyx akoensis Y. Hirase, 1957 Japan
Akramowskia akramowskii (I.M. Likharev, 1962) Armenia
Sprattia aksoylari M.Z. Yildirim, 1997
Sprattia aksuensis H. Nordsieck, 2004
Albinaria alajana O. Böttger, 1896 Turkey, Antalya12 mm
Albinaria alajana dobati H. Nordsieck, 1984 Antalya, Turkey15,5 mm
Megalophaedusa albela (H. Minato, 1976) Miyazaki, Japan
Cristataria albersi (J.G.F. de Charpentier,1852) Lebanon16,9 mm
Oospira albiapex (C.K. Chang & T. Okubo,1994) Taiwan30,5 mm
Peruinia albicolor W.K. Weyrauch, 1957 Peru, Huanuco
Albinaria albicosta (O. Böttger, 1877) Greece21 mm
Delima albocincta (L. Pfeiffer, 1841) Croatia20,3 mm
Parabalea albocostata W.K. Weyrauch, 1957 Peru, Lima13 mm
Parabalea albocostata pygmaea W.K. Weyrauch, 1964 Peru13,2 mm
Cyclonenia albosuturalis H. Nordsieck, 2005
Thaumatoptyx alloptyx H. Nordsieck, 2003 Taiwan
Isabellaria almae (O. Böttger, 1889) Greece15 mm
Medora almissana (H.C. Küster, 1847) Croatia25 mm
Medora almissana mariae H. Nordsieck, 1970 Croatia20,1 mm
Quadriplicata alpestris H. Nordsieck, 1975 Russia, Georgia