of some Species of Brazilian Ants. 159 



and tarsi, slightly fuscous ; the petiole and first node of the ab- 

 donnen pale ferruginous ; the second node and the abdomen fus- 

 cous, and covered with a fine sericeous pile ; the extreme apex 

 rufo-testaceous ; the apical segment has a number of long fuscous 

 hairs ; the head and thorax have a similar fine pile to that on the 

 abdomen. 



The habitat of this species is Brazil, In my own Collection. 



Sp. 5. V seudomyrma sericata. 



Worker. — Length 3^ lines. Black, thickly covered with fine 

 short silky pubescence ; the anterior margin of the face and 

 the mandibles testaceous-yellow ; the antennae rufo-testaceous, 

 the flagellum sometimes slightly fuscous above ; the legs testace- 

 ous, the anterior tibiae and tarsi pale : the prothorax and margins 

 of the scutellum rufo-testaceous ; the petiole of the abdomen is 

 of the same colour as the prothorax. 



This species is also from Brazil. In my own Collection. 



Sp. 6. Pseudomyrma elegans. 



Worker. — Length 3 lines. The head and abdomen black ; the 

 scape in front, the base of the flagellum, the anterior margin of 

 the face and the mandibles, ferruginous : the thorax, legs and 

 nodes of the abdomen, ferruginous ; the apical joints of the tarsi 

 slightly fuscous ; the entire insect destitute of pubescence. 



This species was captured by Mr. Bates, at Para. In my own 

 Collection. 



Sp. 7. Pseudomyrma nigriceps. 



Worker. — Length 2^ lines. Head black : the antennae, man- 

 dibles, and the anterior margin of the face, rufo-testaceous ; the 

 thorax, abdomen and legs pale rufo-testaceous : the first node of 

 the abdomen subtriangular, the upper margin being curved, the 

 curve channelled from the base to the apex, the latter emarginate ; 

 the second node globose ; the sides of the abdomen compressed, 

 but not strangulated in the middle. 



This species was captured by Mr. Bates, at Santarem, Brazil ; 

 it was found coursing over herbage, and also on sandy banks. In 

 my own Collection. 



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



Female. — Length 2\ lines. The head, antennae, prothorax, 

 tibiae and tarsi, pale rufo-testaceous ; the head elongate, full two- 

 thirds of the length of the thorax ; it is also wider than the latter ; 



