Protandrena is a genus of mining bees in the family Andrenidae.

One notable specialist is Protandrena abdominalis, whom specializes on Monarda (bee balm).

[5] cuckoo bees in the genus Holcopasites have been found as nest parasites of Protandrena.

[3] Other Identifying characteristics include [3] Protandrena means "basic Andrena".

This is referring to the facial similarities to Andrena [5] Data sources: i = ITIS,[6] c = Catalogue of Life,[7] g = GBIF,[8] b = Bugguide.net[4]