Taxon - Odkazy a literatura
Ruggiero M. (ed) (2008): World Bee Checklist [http://www.itis.gov/beechecklist.html], ITIS [jako Ceratina nigriceps Friese, 1905]Datum citace: 10. duben 2010
Ruggiero M. (ed) (2008): World Bee Checklist [http://www.itis.gov/beechecklist.html], ITIS [jako Ceratina nigriceps Friese, 1905]