18. Pseudomyrma vidua ^HNS. Pl. Xlii. fig. 13.

Male. Length 3 lines.-Rufo-testaceous: the apex of the abdomen fuscous; the face, antennae and legs paler than the thorax or abdomen; the eyes and ocelli large and prominent, the former black, the latter of a glassy brightness; wings hyaline and beautifully iridescent, the nervures testaceous.

Hab. Brazil (Ega).