Erythrodiplax umbrata (Linnaeus) . Puerto Barrios, at night, February 1, IJC (22), 1 ♂ (same as 20, see Anomalagrion hastatum) . Tikal: April 7, THH+ IJC (141), 1♀ (see Anatyanormalis); in bajo in a small sunny opening around young escobas and palm fronds, April 9, THH+IJC (150), 3 ♂, 2♀ ; in great plaza of ruins, May 13, THH, 1 ♂ ; at east end of airstrip at which taller forest trees were felled in the A. M., collecting by lantern and headlights on foliage of felled trees, 6 to 9:30 pm, May 17, THH (279), l ♂, 3 ♀ ; May 19, THH (282), 1 ♂, 1 ♀ (see Uracis imbuta) ; around camp, May 20, THH, l ♀ . Poptun: April 14, THH+ IJC (170), 2 ♂, 2 ♀ (see Lestes tenuatus) ; collecting by headlights in pinewoods north of Poptun, 7:30 to 10:30 PM, April 15, THH+IJC (172), 19 ♂, 14 ♀ (same as 170, see Lestes tenuatus) ; April 16, THH + IJC (178), 2 ♂, 2 ♀ (see Hetaerina pilula) .

Except for two homochromatic females taken at Poptun, April 15, all of the females are of the heterochromatic form.