13. Oecodoma hystrix ^HNS. Pl. X. fig. 18. B.M.

Formica hystrix, Latr. ^HNS Hist. Nat. Fourm. 229 [[worker]].

Fabr. Syst. Piez. 414. 75 [[queen]]. Atta hystrix, Halid ^HNS. Trans. Linn. Soc. xvii. p. 328 (1837)..

Hab. South America; Brazil (Para). (Coll. H. W. Bates.)

Of this species Mr. Bates remarks - " This is a distinct species, offering precise characters in the thoracic spines, &c. I found a vast number on one occasion in a low meadow, carrying away fragments of fallen fruit; the whole were nearly of uniform size; I found none of the large-headed individuals."