Key to the species of Circumvitellatrema Dronen, Greiner, Ialeggio & Nolan, 2009

1a. Eggs 137–146 µm x 68 –74 µm................................ C. momota Dronen, Greiner, Ialeggio & Nolan, 2009

1b. Eggs 130 µm x 64 µm........................................................... C. phasidi (Stunkard, 1929)