Reference
Anselm Kratochwil (2021): Taxonomic re-evaluation of Andrena cyanomicans PÉREZ, 1895, A. fratella WARNCKE, 1968, A. maderensis WARNCKE, 1969, A. mirna WARNCKE, 1969, A. notata WARNCKE, 1968, and A. portosanctana WARNCKE, 1969 (Hymenoptera, Anthophila) – Linzer biologische Beiträge – 0053_2: 631 - 698.