- Heneberg, P., Bogusch, P., and Řehounek, J. 2013
- Sandpits provide critical refuge for bees and wasps (Hymenoptera: Apocrita). Journal of Insect Conservation 17: 473-490.
- Straka, J. & Bogusch, P. 2014
- Schmiedeknechtia oraniensis. The IUCN Red List of Threatened Species 2014: e.T19198369A21145929. Downloaded on 16 April 2019.
- Ferton, C. 1894
- Seconde note sur les moeurs de quelques Hymenopteres du genre Osmia Panzer principalement de la Provence. Actes de la Socie´te´ Linneenne de Bordeaux 47: 203–214. http://www.biodiversitylibrary.org/bibliography/16235/summary
- Nedialkov, N. 1914
- Septième contribution à la faune entomologique de la Bulgarie. Spis. bulg. Akad. Nauk 9: 181-209.
- Kovács-Hostyánszki, A., Kőrösi, Á., Orci, K.M., Batáry, P. and Báldi, A. 2011
- Set-aside promotes insect and plant diversity in a Central European country (Supplementary data). Agriculture Ecosystems & Environment 01/2011(141): 296-301.
- Paulus, H.F. 1997
- Signale in der Bestäuberanlockung: Weibchenimitation als Bestäubungsprinzip bei der mediterranen Orchideengattung Ophrys. Verhandlungen der zoologisch-botanischen Gesellschaft Österreich 134: 133-176.
- Cross, I. & Notton D.G. 2017
- Small-Headed Resin Bee, Heriades rubicola, new to Britain (Hymenoptera: Megachilidae). British Journal of Entomology & Natural History 30:1-6
- Ortiz-Sanchez, F.J. & M. Terzo. 2004
- Sobre los Xylocopini ibéricos, con la primera cita de Xylocopa valga Gerstaecker 1872 para la fauna portuguesa y datos autoecológicos para Xylocopa cantabrita Lepeletier 1841 (Hymenoptera, Apoidea, Xylocopinae). Linzer biologische Beitrage, 36(1): 309-313.
- Gogala, A. 2011
- Some interesting notes of the Andrena species in Slovenia (Hymenoptera: Andrenidae). Acta Entonologica Slovenica 19(1): 29-35.
- Popov, V.B. 1944
- Some parasitic bees from Cyprus (Hymenoptera, Apoidea). Proceedings of the Royal Entomological Society, London (B) Volume 13, Issue 9-10. pp.120–124
- Archer, M.E. 1996
- Some uncommon bees and wasps taken in recent years, including a number of new county records. British Journal of Entomology and Natural History 9(4): 236.
- Reemer, M., Rond, J. 2014
- Soortzoeker Tuinbijen van Nederland (Apidae)
- Chifflet, R., Klein, E.K., Lavigne, C., Le Féon, V., Ricroch, A.E., Lecomte, J. and Vaissière, B.E. 2011
- Spatial scale of insect-mediated pollen dispersal in oilseed rape in an open agricultural landscape. . Journal of Applied Ecology 48(3): 689–696.
- Dochkova, B., Atanassov, N. and Vassileva, E. 1987
- Species composition and numbers of the wild bees (Hymenoptera, Apoidea) - pollinating on the forage loants from the region of Pleven. Acta Zoologica Bulgarica 35 : 34-43.
- Sidorov, D.A. 2010
- Species diversity and ecology of bees’ family Andrenidae (Hymenoptera, Apoidea) of Kuznetsk-Salairsky mountainous areas.
- Bogusch, P. & Straka, J. 2014
- Sphecodes rubripes. The IUCN Red List of Threatened Species 2014: e.T47982116A47996274. http://dx.doi.org/10.2305/IUCN.UK.2014-2.RLTS.T47982116A47996274.en. Downloaded on 01 December 2018.
- National Research Council. 2007
- Status of Pollinators in North America. The National Academies Press, Washington, DC.
- Fateryga AV, Ivanov SP, Filatov MA. 2013
- Stelis aculeata – a cleptoparasitic bee species new for the fauna of Europe and new findings of its presumable host, Hoplitis princeps (Hymenoptera: Megachilidae) in the Crimea. Ekosistemy, ikh Optimizatziya i Okhrana [Optimization and Protection of Ecosystems]. 8:61–65.
- Edwards, M., Hazlehurst, G. and Wright, I. 2019
- Stelis odontopyga Noskiewicz (Hymenoptera: Megachilinae) New to Britain. Br. J. Ent. Nat. Hist. 32 pp 43-47
- Mukhin, Yu. P., and Kuzmina, T.S. 2000
- Structural and functional organization of elementary communities. Part 2. Volgograd State University Publishing House, Volgograd.
- Grandi, G. 1961
- Studi di un entomologo sugli imenotteri superiori. Bollettino dell'Instituto di Entomologia dell'Universita di Bologna 25: 1-659.
- Dubitzky, A. 2005
- Studies in phylogeny and biosystematics of bees: The bee genus Andrena (Andrenidae) and the tribe Anthophorini (Apidae) (Insecta: Hymenoptera: Apoidea). Dissertation zur Erlangung des Doktorgrades, Ludwig-Maximilians-Universität .
- Wu, Y.R. 1982
- Studies on Chinese Andrena (Chrysandrena) with descriptions of a new species and a new subspecies (Hymenoptera: Andrenidae). Sinozoologia 2: 63-66.
- Løken A. 1973
- Studies on Scandinavian Bumble Bees (Hymenoptera, Apidae). Norsk entomologisk Tidsskrift, 20(1): 1-218
- Praz, C.J. 2017
- Subgeneric classification and biology of the leafcutter and dauber bees (genus Megachile Latreille) of the western Palearctic (Hymenoptera, Apoidea, Megachilidae). Journal of Hymenoptera Research, 55: 1–54. DOI: https://doi.org/10.3897/ jhr.55.11255
- Yunusov, T.M. 2012
- Subgeneric structure of the genus Andrena Fabricus, 1775 (Hymenoptera, Andrenidae) of the Greater Caucasus in Azerbaijan. In: G.M. Abdurakhmanov (ed.), Proceedings of the XIV International Scientific Conference "Biodiversity of the Caucasus and southern Russia" , pp. 460. Makhachkala.
- Müller, A. 2016
- Subgenus Heriades. Palaearctic Osmiine Bees [Online]. Available from: http://blogs.ethz.ch/osmiini [Accessed 20/11/2016].
- Steffan-Dewenter I., Tscharntke T. 2001
- Succession of bee communities on fallows. Ecography 24: 83-93.
- Rassi, P., Alanen, A., Kanerva, T. and Mannerkoski, I. (eds.). 2001
- Suomen lajien uhanalaisuus 2000 [The 2000 Red List of Finnish species]. Ympäristöministeriö & Suomen ympäristökeskus, Helsinki.
- Söderman G, Leinonen R. 2003
- Suomen mesipistiäiset ja niiden uhanalaisuus. Helsinki. Tremex Press. 420 p.
- Söderman, G. and Leinonen, R. 2003
- Suomen Mesipistiäiset ja niiden uhanalaisuus. Tremex Press Oy, Helsinki.
- Ponomareva A.A. 1978
- Superfamille Apoidea (apoïdes). Clé de détermination des familles de la Superfamille Apoidea. Clé de détermination des genres. pp.279-292 in: G.S.Medvedeva, Opredelitel' nasekomykh evropeyskoy chasti S.S.S.R. III. Pereponchatokrylye. Akademii Nauk S.S.S.R., Leningrad, 584 pp. Traduction en français par A.Descamps, Université de Mons-Hainaut.
- Osytshnjuk, A.Z., Panfilov, D.V. and Ponomareva, A.A. 1978
- Superfamily Apoidea. In: Medvedev, G.S. (ed.), Key to the Insects of the European Part of the USSR., pp. 279–519 . Nauka. P., Leningrad.
- Aubert, M., Dufrêne, E., Genoud, D.,Scheuchl, E., Schwarz, M. 2010
- Sur la présence d'Andrena binominata SMITH, 1853 (Hymenoptera, Andrenidae) et de Nomada duplex SMITH, 1854 (Hymenoptera, Apidae) en France. Osmia 8 24-28
- Nielsen, E.T. 1934
- Sur les habitudes des Hyménoptères aculéates-solitaires. IV. (Apidae). Entomologiske Meddelelser 18: 421-472.
- Hellrigl, K. 2006
- Synopsis der Wildbienen Südtirols: (Hymenoptera: Apidae). Forest observer 2/3: 421-472.
- Tadauchi, O. 1985
- Synopsis of Andrena (Micrandrena) of Japan (Hymenoptera, Andrenidae). Part II. . Journal of the Faculty of Agriculture, Kyushu University 30(1): 77-94.
- Pesenko, Yu A. 1995
- Synopsis of the bee fauna (Hymenoptera: Apoidea) of Russia and the neighbouring countries, with a list of oligolectic species. In: Banaszak J. (ed.), Changes in fauna of wild bees in Europe., pp. 45-52.
- Brooks, R.W. 1988
- Systematics and phylogeny of the anthophorine bees. University of Kansas Science Bulletin 53: 436-575.
- Warncke, K. 1977
- Systematik der westpaläarkticher Bienengattung Dioxys. Reichenbachia 16(28): 265-282.
- Frey-Gessner, E. 1911
- Systematisches Verzeichnis der bis jetzt in der Schweiz gefundenen Apiden. Fauna insectorum helvetiae. Mitteilungen der Schweizerische Entomologische Gesellschaft 11: 257-319.