Literature
Auteur(s) Dewulf, A. & Praz, C.
Jaar 2014
Titel Megachile semicircularis. The IUCN Red List of Threatened Species 2014: e.T19198908A50142482. http://dx.doi.org/10.2305/IUCN.UK.2014-3.RLTS.T19198908A50142482.en. Downloaded on 11 April 2019.