Argia frequentula Calvert. Poptun: April 16, THH + IJC (178), 2 ♂, 2 ♀ (see Hetaerina pilula) ; in monte, along road from Poptun to San Luis, April 20, THH+IJC (196), 4 ♂, 1 ♀ .

This is apparently the first record of this species from the Yucatan Peninsula.