Apis centuncularis Linnaeus, 1758:575, sex not indicated.Europa. - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:105 (listed). - As Megachile centuncularis: - Kuhlmann, Kuhlmann, M. . in lit. :. (listed); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557. (distribution); Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209. (distribution); Pagliano, 1995Pagliano, G. 1995. Hymenoptera Apoidea. In: Minelli A., Ruffo S. & La Posta S. (Ed.). Checklist delle specie della fauna italiana. 1-25. (distribution); Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398. (distribution), 105 (listed); Scheuchl, 1996Scheuchl, E. 1996. Illustrierte Bestimmungstabellen der Wildbienen Deutschlands und Österreichs Bd. II. 1-116.:109 (listed); Fowles, A.P., 1996Fowles, A.P. 1996. A provisional checklist of the invertebrates recorded from Wales. 2. Aculeate wasps, bees and ants (Hymenoptera: Aculeata). 1-57. (distribution); Banaszak, 2000Banaszak, J. 2000. A checklist of the bee species (Hymenoptera, Apoidea) of Poland with remarks on their taxonomy and zoogeography: revised version. Fragmenta Faunistica 43 (14):135-193. (distribution); Dathe, H.H., 2001Dathe, H.H. 2001. Apidae. In: Dathe, H., A. Taeger & S.M. Blank (Ed.). Verzeichnis der Hautflügler Deutschlands (Entomofauna Germanica, Band 4). 143-155. (distribution), 151 (distribution); Bieri, 2002Bieri, S. 2002. Bienen und Wespen des Fürstentums Liechtenstein. 1-160. (distribution); Amiet et al., 2004Amiet, F., M. Herrmann, A. Müller & R. Neumeyer 2004. Apidae 4 - Anthidium, Chelostoma, Coelioxys, Dioxys, Heriades, Lithurgus, Megachile, Osmia, Stelis. 1-273.:92 (listed); Borges et al., 2005Borges, P.A.V., K. van Achterberg, R.R. Askew, K. Zwakhals, O. Oliveira & A.M.C. Santos 2005. Hymenoptera. In: (Ed.). A list of the terrestrial fauna (Mollusca and Arthropoda) and flora (Bryophyta, Pteridophyta and Spermatophyta) from the Azores. 218-221. (distribution); Straka et al., 2007Straka, J., P. Bogusch & A. Pridal 2007. Apoidea: Apiformes (včely). In: Bogusch, P., J. Straka & P. Kment (Ed.). Annotated checklist of the Aculeata (Hymenoptera) of the Czech Republic and Slovakia. 241-299. (distribution); Gogala, 2009Gogala, A. 2009. Bee fauna of Slovenia: checklist of species (Hymenoptera: Apoidea). . (distribution); Tomozei, B., 2012Tomozei, B. 2012. Bees of Romania. . (distribution). - As Megachile centuncularis centuncularis: - Rasmont et al., 1995Rasmont, P., P.A. Ebmer, J. Banaszak & G. van der Zanden 1995. Hymenoptera Apoidea Gallica. Bulletin de la Société entomologique de France 100 (hors série):1-98. (distribution); Ortiz-Sánchez, F.J., 2006Ortiz-Sánchez, F.J. 2006. Lista preliminar de los Apoidea (Hymenoptera) de Andalucia (sur de la Penínscula Ibérica). Acta Granatense 4/5:17-39. (distribution).
Apis fastosus Harris, 1776 - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:105 ( listed as synonym of Megachile centuncularis (Linnaeus, 1758)).
Megachile parvula Lepeletier, 1841:340, ♀. ♀, De Baréges, Pyrénées (Lepeletier). - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:105 ( listed as synonym of Megachile centuncularis (Linnaeus, 1758)).
Megachile infragilis Cresson, 1878:127, ♂.New York (leg. Comstock). - Dalla Torre, 1896Dalla Torre, C.G. 1896. Catalogus Hymenopterorum hucusque descriptorum systematicus et synonymicus, X. Apidae (Anthophila). Sumptibus Guilelmi Engelmann, 1-643. (distribution); Robertson, 1897Robertson, C. 1897. North American bees - Descriptions and synonyms. Transactions of the Academy of Science of St. Louis 7:315-356.:351 ( listed as synonym of Megachile relativa Cresson, 1878); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:124 ( listed as synonym of Megachile centuncularis (Linnaeus, 1758)); Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209.:2055 ( listed as synonym of Megachile centuncularis (Linnaeus, 1758)).
Megachile relativa Cresson, 1878:126 - Robertson, 1897Robertson, C. 1897. North American bees - Descriptions and synonyms. Transactions of the Academy of Science of St. Louis 7:315-356. (distribution).
Megachile appia Nurse, 1903 - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:105 ( listed as synonym of Megachile centuncularis (Linnaeus, 1758)).
Megachile leoni Titus, 1906:150 - Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:124 ( listed as synonym of Megachile centuncularis (Linnaeus, 1758)); Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209.:2055 ( listed as synonym of Megachile centuncularis (Linnaeus, 1758)).
Perezia maura Ferton, 1914:233 - Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209.:2055 ( listed as synonym of Megachile centuncularis (Linnaeus, 1758)); Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:108 ( listed as synonym of Megachile leachella Curtis, 1828).
Megachile centuncularis theryi Cockerell, 1931 - Rasmont et al., 1995Rasmont, P., P.A. Ebmer, J. Banaszak & G. van der Zanden 1995. Hymenoptera Apoidea Gallica. Bulletin de la Société entomologique de France 100 (hors série):1-98. (distribution); Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:105 ( listed as synonym of Megachile centuncularis (Linnaeus, 1758)).
Megachile centuncularis nesiotica Marvromoustakis, 1953 - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:105 ( listed as synonym of Megachile centuncularis (Linnaeus, 1758)).
- As Apis albiventris: - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:107 (listed). - As Megachile leachella: - Pagliano, 1995Pagliano, G. 1995. Hymenoptera Apoidea. In: Minelli A., Ruffo S. & La Posta S. (Ed.). Checklist delle specie della fauna italiana. 1-25. (distribution); Dathe, H.H. et al., 1995Dathe, H.H., C. Saure, F. Burger, H.-J. Flügel & S.M. Blank 1995. Materialien zur Ergänzung der Roten Liste der Bienen Brandenburgs (Hymenoptera: Apidae). Brandenb. ent. Nachr. 3 (1):53-68.:66 (distribution [Arten, für die die Aufnahme in die Rote Liste zu prüfen ist]); Rasmont et al., 1995Rasmont, P., P.A. Ebmer, J. Banaszak & G. van der Zanden 1995. Hymenoptera Apoidea Gallica. Bulletin de la Société entomologique de France 100 (hors série):1-98. (distribution); Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398. (distribution), 107 (listed [M. leachella und die sehr nah verwandte M. pilidens sind, entgegen bisweilen geäußerter Zweifel, eigenständige Arten (vgl. Rebmann 1968).]); Scheuchl, 1996Scheuchl, E. 1996. Illustrierte Bestimmungstabellen der Wildbienen Deutschlands und Österreichs Bd. II. 1-116.:109 (listed); Fowles, A.P., 1996Fowles, A.P. 1996. A provisional checklist of the invertebrates recorded from Wales. 2. Aculeate wasps, bees and ants (Hymenoptera: Aculeata). 1-57. (distribution); Banaszak, 2000Banaszak, J. 2000. A checklist of the bee species (Hymenoptera, Apoidea) of Poland with remarks on their taxonomy and zoogeography: revised version. Fragmenta Faunistica 43 (14):135-193. (distribution); Dathe, H.H., 2001Dathe, H.H. 2001. Apidae. In: Dathe, H., A. Taeger & S.M. Blank (Ed.). Verzeichnis der Hautflügler Deutschlands (Entomofauna Germanica, Band 4). 143-155. (distribution), 151 (distribution); Mandery, K. et al., 2003Mandery, K., J. Voith, M. Kraus, K. Weber, K.-H. Wickl, unter Mitarbeit von, D. Bausenwein, P. Hartmann, E. Scheuchl & J. Schuberth 2003. Rote Liste gefährdeter Bienen (Hymenoptera: Apidae) Bayerns. In: Bayerisches Landesamt für Umweltschutz (Ed.). Rote Liste gefährdeter Tiere Bayerns. 198-207.:202 (listed); Amiet et al., 2004Amiet, F., M. Herrmann, A. Müller & R. Neumeyer 2004. Apidae 4 - Anthidium, Chelostoma, Coelioxys, Dioxys, Heriades, Lithurgus, Megachile, Osmia, Stelis. 1-273.:99 (listed); Ortiz-Sánchez, F.J., 2006Ortiz-Sánchez, F.J. 2006. Lista preliminar de los Apoidea (Hymenoptera) de Andalucia (sur de la Penínscula Ibérica). Acta Granatense 4/5:17-39. (distribution); Straka et al., 2007Straka, J., P. Bogusch & A. Pridal 2007. Apoidea: Apiformes (včely). In: Bogusch, P., J. Straka & P. Kment (Ed.). Annotated checklist of the Aculeata (Hymenoptera) of the Czech Republic and Slovakia. 241-299. (distribution); Gogala, 2009Gogala, A. 2009. Bee fauna of Slovenia: checklist of species (Hymenoptera: Apoidea). . (distribution); Esser, Fuhrmann & Venne, 2010Esser, Fuhrmann & Venne 2010. Rote Liste und Gesamtartenliste der Wildbienen und Wespen (Hymenoptera: Apidae, Crabronidae, Sphecidae, Ampulicidae, Pompilidae, Vespidae, Tiphiidae, Sapygidae, Mutillidae, Chrysididae) Nordrhein-Westfalens. Ampulex 2:5-60. (distribution); Tomozei, B., 2012Tomozei, B. 2012. Bees of Romania. . (distribution). - As Megachile saussurei: - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:108 (listed). - As Megachile argentata fossoria: - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:108 (listed). - As Megachile leachella maadiensis: - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:108 (listed). - As Megachile versicolor: - Kuhlmann, Kuhlmann, M. . in lit. :. (listed); Pagliano, 1995Pagliano, G. 1995. Hymenoptera Apoidea. In: Minelli A., Ruffo S. & La Posta S. (Ed.). Checklist delle specie della fauna italiana. 1-25. (distribution); Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398. (distribution), 110 (listed); Scheuchl, 1996Scheuchl, E. 1996. Illustrierte Bestimmungstabellen der Wildbienen Deutschlands und Österreichs Bd. II. 1-116.:109 (listed); Fowles, A.P., 1996Fowles, A.P. 1996. A provisional checklist of the invertebrates recorded from Wales. 2. Aculeate wasps, bees and ants (Hymenoptera: Aculeata). 1-57. (distribution); Fellendorf, M. et al., 1999Fellendorf, M., C. Mohra, S. Roberts, P. Wirtz & G. van der Zanden 1999. The bees of Madeira (Hymenoptera, Apoidea). Bocagiana 197:1-17. (distribution); Banaszak, 2000Banaszak, J. 2000. A checklist of the bee species (Hymenoptera, Apoidea) of Poland with remarks on their taxonomy and zoogeography: revised version. Fragmenta Faunistica 43 (14):135-193. (distribution); Dathe, H.H., 2001Dathe, H.H. 2001. Apidae. In: Dathe, H., A. Taeger & S.M. Blank (Ed.). Verzeichnis der Hautflügler Deutschlands (Entomofauna Germanica, Band 4). 143-155. (distribution), 151 (distribution); Bieri, 2002Bieri, S. 2002. Bienen und Wespen des Fürstentums Liechtenstein. 1-160. (distribution); Amiet et al., 2004Amiet, F., M. Herrmann, A. Müller & R. Neumeyer 2004. Apidae 4 - Anthidium, Chelostoma, Coelioxys, Dioxys, Heriades, Lithurgus, Megachile, Osmia, Stelis. 1-273.:110 (listed); Straka et al., 2007Straka, J., P. Bogusch & A. Pridal 2007. Apoidea: Apiformes (včely). In: Bogusch, P., J. Straka & P. Kment (Ed.). Annotated checklist of the Aculeata (Hymenoptera) of the Czech Republic and Slovakia. 241-299. (distribution); Gogala, 2009Gogala, A. 2009. Bee fauna of Slovenia: checklist of species (Hymenoptera: Apoidea). . (distribution); Tomozei, B., 2012Tomozei, B. 2012. Bees of Romania. . (distribution). - As Megachile versicolor versicolor: - Rasmont et al., 1995Rasmont, P., P.A. Ebmer, J. Banaszak & G. van der Zanden 1995. Hymenoptera Apoidea Gallica. Bulletin de la Société entomologique de France 100 (hors série):1-98. (distribution). - As Megachile rufiventris: - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:110 (listed); Scheuchl, 1996Scheuchl, E. 1996. Illustrierte Bestimmungstabellen der Wildbienen Deutschlands und Österreichs Bd. II. 1-116.:109 ( listed as synonym of Megachile centuncularis (Linnaeus, 1758), listed). - As Megachile distincta: - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:110 (listed). - As Megachile versicolor hiberniae: - Rasmont et al., 1995Rasmont, P., P.A. Ebmer, J. Banaszak & G. van der Zanden 1995. Hymenoptera Apoidea Gallica. Bulletin de la Société entomologique de France 100 (hors série):1-98. (distribution); Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:110 (listed). - As Megachile pilicruriformis: - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:110 (listed).
Apis rotundata Fabricius, 1787:303, sex not indicated.Hafniae (leg. D. Pflug); Raw, 2007Raw, A. 2007. An annotated catalogue of the leafcutter and mason bees (genus Megachile) of the Neotropics. Zootaxa 1601:1-127.:50, Type ♀ (Copenhagen). - Krombein et al., 1979Krombein, K.V., P.D. Hurd, D.R. Smith & B.D. Burks 1979. Catalog of Hymenoptera in America North of Mexico. Volume 2. Apocrita (Aculeata). Smithsonian Institution Press, Washington D.C. 1199-2209.:2055 ( listed as synonym of Megachile centuncularis (Linnaeus, 1758)); Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:110 (listed [nec Panzer 1798]). - As Megachile rotundata: - Kuhlmann, Kuhlmann, M. . in lit. :. (listed); Pagliano, 1995Pagliano, G. 1995. Hymenoptera Apoidea. In: Minelli A., Ruffo S. & La Posta S. (Ed.). Checklist delle specie della fauna italiana. 1-25. (distribution); Dathe, H.H. et al., 1995Dathe, H.H., C. Saure, F. Burger, H.-J. Flügel & S.M. Blank 1995. Materialien zur Ergänzung der Roten Liste der Bienen Brandenburgs (Hymenoptera: Apidae). Brandenb. ent. Nachr. 3 (1):53-68.:66 (distribution [Arten, für die die Aufnahme in die Rote Liste zu prüfen ist]); Rasmont et al., 1995Rasmont, P., P.A. Ebmer, J. Banaszak & G. van der Zanden 1995. Hymenoptera Apoidea Gallica. Bulletin de la Société entomologique de France 100 (hors série):1-98. (distribution); Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398. (distribution), 110 (listed); Scheuchl, 1996Scheuchl, E. 1996. Illustrierte Bestimmungstabellen der Wildbienen Deutschlands und Österreichs Bd. II. 1-116.:109 (listed); Frommer, U., 1999Frommer, U. 1999. Über das Vorkommen thermophiler Bienenarten und Neufunde von Apidae in Mittelhessen (Hymenoptera). Hess. faun. Briefe 18 (1):13-19.:14 (distribution); Banaszak, 2000Banaszak, J. 2000. A checklist of the bee species (Hymenoptera, Apoidea) of Poland with remarks on their taxonomy and zoogeography: revised version. Fragmenta Faunistica 43 (14):135-193. (distribution); Dathe, H.H., 2001Dathe, H.H. 2001. Apidae. In: Dathe, H., A. Taeger & S.M. Blank (Ed.). Verzeichnis der Hautflügler Deutschlands (Entomofauna Germanica, Band 4). 143-155. (distribution), 151 (distribution); Amiet et al., 2004Amiet, F., M. Herrmann, A. Müller & R. Neumeyer 2004. Apidae 4 - Anthidium, Chelostoma, Coelioxys, Dioxys, Heriades, Lithurgus, Megachile, Osmia, Stelis. 1-273.:109 (listed); Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a Biological Catalogue of the Genus Megachile of the Neotropics. :1-97. (distribution); Raw, 2007Raw, A. 2007. An annotated catalogue of the leafcutter and mason bees (genus Megachile) of the Neotropics. Zootaxa 1601:1-127. (distribution); Gogala, 2009Gogala, A. 2009. Bee fauna of Slovenia: checklist of species (Hymenoptera: Apoidea). . (distribution); Tomozei, B., 2012Tomozei, B. 2012. Bees of Romania. . (distribution); Owens et al., 2018Owens, B.E., L. Allain, E.C. van Gorder, J.L. Bossart & C.E. Carlton 2018. The bees (Hymenoptera: Apoidea) of Louisiana: An updated, annotated checklist. Proceedings of the Entomological Society of Washington 120 (2):272-307. (distribution).
Apis pacifica Panzer, 1798 Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a Biological Catalogue of the Genus Megachile of the Neotropics. :1-97.:42, Type ♀ (unknown); Raw, 2007Raw, A. 2007. An annotated catalogue of the leafcutter and mason bees (genus Megachile) of the Neotropics. Zootaxa 1601:1-127.:50, Type (MNHU). - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:110 ( listed as synonym of Megachile rotundata (Fabricius, 1787)); Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a Biological Catalogue of the Genus Megachile of the Neotropics. :1-97.:42 ( listed as synonym of Megachile rotundata (Fabricius, 1787)); Raw, 2007Raw, A. 2007. An annotated catalogue of the leafcutter and mason bees (genus Megachile) of the Neotropics. Zootaxa 1601:1-127.:50 ( listed as synonym of Megachile rotundata (Fabricius, 1787)). - As Megachile pacifica: - Scheuchl, 1996Scheuchl, E. 1996. Illustrierte Bestimmungstabellen der Wildbienen Deutschlands und Österreichs Bd. II. 1-116.:109 ( listed as synonym of Megachile rotundata (Fabricius, 1787)); Amiet et al., 2004Amiet, F., M. Herrmann, A. Müller & R. Neumeyer 2004. Apidae 4 - Anthidium, Chelostoma, Coelioxys, Dioxys, Heriades, Lithurgus, Megachile, Osmia, Stelis. 1-273.:109 ( listed as synonym of Megachile rotundata (Fabricius, 1787)); Straka et al., 2007Straka, J., P. Bogusch & A. Pridal 2007. Apoidea: Apiformes (včely). In: Bogusch, P., J. Straka & P. Kment (Ed.). Annotated checklist of the Aculeata (Hymenoptera) of the Czech Republic and Slovakia. 241-299. (distribution).
Megachile imbecilla Gerstäcker, 1869 Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a Biological Catalogue of the Genus Megachile of the Neotropics. :1-97.:43, Type ♀ (unknown). - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:110 ( listed as synonym of Megachile rotundata (Fabricius, 1787)); Scheuchl, 1996Scheuchl, E. 1996. Illustrierte Bestimmungstabellen der Wildbienen Deutschlands und Österreichs Bd. II. 1-116.:109 ( listed as synonym of Megachile rotundata (Fabricius, 1787)); Raw, 2004Raw, A. 2004. Leafcutter and Mason Bees: a Biological Catalogue of the Genus Megachile of the Neotropics. :1-97.:42 ( listed as synonym of Megachile rotundata (Fabricius, 1787)); Raw, 2007Raw, A. 2007. An annotated catalogue of the leafcutter and mason bees (genus Megachile) of the Neotropics. Zootaxa 1601:1-127.:50 ( listed as synonym of Megachile rotundata (Fabricius, 1787)).
Megachile nadia Nurse, 1903 - Schwarz et al., 1996Schwarz, M., F. Gusenleitner, P. Westrich & H. Dathe 1996. Katalog der Bienen Österreichs, Deutschlands und der Schweiz (Hymenoptera, Apidae). Entomofauna Suppl. 8:1-398.:110 ( listed as synonym of Megachile rotundata (Fabricius, 1787)).