Stelis (Protostelis) signata (Latreille, 1809)
- Baldock, D., Wood, T., Cross, I., Smit, J. 2018. The Bees of Portugal (Hymenoptera: Apoidea: Anthophila) – Entomofauna Suppl. S22: 1–164.
- Fateryga A.V. 2017. New data on megachilid bees (Hymenoptera: Megachilidae) of the European part of Russia Proceedings of the Russian Entomological Society. St Petersburg, 2017. Vol. 88(2): 86–90.
- Grace, A. 2010. Introductory Biogeography to Bees of the Eastern Mediterranean and Near East. Bexhill Museum, Sussex, U.K.
- Kasparek, M. 2015. The Cuckoo Bees of the Genus Stelis Panzer, 1806 in Europe, North Africa and the Middle East: A Review and Identification Guide. Entomofauna Vol No : 18: 144pp.
- Kuhlmann, M., Ascher, J.S., Dathe, H.H., Ebmer, A.W., Hartmann, P., Michez, D., Müller, A., Patiny, S., Pauly, A., Praz, C., Rasmont, P., Risch, S., Scheuchl, E., Schwarz, M., Terzo, M., Williams, P.H. et al. 2012. Checklist of the Western Palaearctic bees: http://westpalbees.myspecies.info. Available at: http://westpalbees.myspecies.info. (Accessed: 10th November 2017).
- Mavromoustakis, G.A. 1948. XL.—On the bees (Hymenoptera Apoidea) of Cyprus.—Part I, Annals and Magazine of Natural History, 12:1. pp.541-587.
- Mavromoustakis, G.A. 1952. LXXXVI.—On the bees (Hymenoptera, Apoidea) of Cyprus.—Part III. Annals and Magazine of Natural History Vol. 5 , Iss. 57 pp.814-843.
- 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.
- Stanisavljević, L. 2000. Idioekološka studija vrsta Osmia cornuta (Latr.) i O. rufa (L.) (Megachilidae, Hymenoptera) sa posebnim osvrtom na njihov status i značaj kao oprašivača biljaka. Doctoral dissertation [unpublished] Beograd.
- Söderman, G. and Leinonen, R. 2003. Suomen Mesipistiäiset ja niiden uhanalaisuus. Tremex Press Oy, Helsinki.
- Westrich, P. 1989. Die Wildbienen Baden-Württembergs. Verlag Eugen Ulmer, Stuttgart, Allgemeiner Teil, pp.1-431; Spezieller Teil, pp.432-972.