Pseudomyrma oculata, Guérin-Ménéville, 1844

Smith, Frederick, 1855, Descriptions of some species of Brazilian ants belonging to the genera Pseudomyrma, Eciton and Myrmica (with observations on their economy by Mr. H. W. Bates), Transactions of the Entomological Society of London (2) 3, pp. 156-169 : 159-160

Sp. 8. Pseudomyrma oculata . (PI. XIII.)

Female.-Length lines. The head, antennae, prothorax, tibise and tarsi, pale rufo-testaceous ; the head elongate, full twothirds of the length of the thorax ; it is also wider than the latter ; the eyes very large, placed rather more within the face than in the other species ; the antennae rather more thickened at the apex than in the other species of the genus ; the meso- and metathorax, abdomen and femora, fusco-testaceous; wings hyaline, nervures pale testaceous, the stigma fuscous; the sides of the thorax nearly parallel, transverse in front, the angles rounded ; the metathorax obliquely rounded at the sides,

Worker.-2 lines. Closely resembling the female, but having the thorax strangulated in the middle, and compressed at the sides, and being altogether of a paler colour.

There is considerable difference in the form of the thorax and head of this species when compared with the others; and had I not possessed the female, and had an opportunity of observing that the neuration of the wings is identical with that of the others, I should probably have placed this insect in a separate genus. In addition to these reasons for retaining it, I have the observation of Mr. Bates on its habits, that of coursing over trunks of trees and leaves, in the same manner as the other species ; and his note of observation-"this curious Myrmica is closely allied to No. 70," P. nigriceps .

Also from Brazil, in my own and other Collections.