64 Mr. F. Smith's descrijJtions of new species 



47. Pseudomyrma fei^ruginea. 



Worker. — Lengtli 2|- lines. Ferruginous ; the head 

 oblong-ovate, slightly emarginate behind; very finely and 

 closely punctured ; a longitudinal impressed line runs from 

 the anterior ocellus to the insertion of the antennae; the 

 eyes black, and scarcely half the length of the head; the 

 antennas and cheeks with a fine, thin, white pile. Thorax 

 oblong; strangulated in the middle; rounded anteriorly 

 and posteriorly; the metathorax not elevated; sprinkled 

 with a few erect hairs. Abdomen oblong-ovate, pointed 

 at the apex, and covered with a thin white pile ; more or 

 less fuscous beyond the second node; the petiole of the 

 first node short, the node ovate and much narrower than 

 the second node. 



Hab. — Mexico. Type in British Museum. 



48. Pseudomyrma rufa. 



Worker. — Length 3|^ lines. Rufous; the scape, basat 

 half of the flagellum, the mandibles, the anterior tibiee, 

 the base of the intermediate and posterior pairs, the base 

 and apex of the femora, and the tarsi, pale rufo-testaceous ; 

 the eyes very large, occupying two-thirds of the length of 

 the head ; the prothorax flattened, its margins slightly 

 raised; the metathorax elevated above the prothorax, flat- 

 tened on the disk. Abdomen : the first node compressed, 

 channelled above, and emarginate posteriorly; the second 

 node subglobose. 



Hah. — Amazons, Brazil. 



49. Pseudomyrma terminalis. 



Female. — Length 2 lines. Head, thorax, legs, and 

 nodes of the abdomen, pale rufo-testaceous ; the abdomen 

 black ; the ocelli and eyes black ; the latter oblong-ovate ; 

 large, and occupying two-thirds of the length of the head. 

 Thorax elongate ; the meso- and meta-thorax a little darker 

 than the head or prothorax; smooth and shining; the 

 intermediate and posterior femora slightly rufo-piceous in 

 the middle ; abdomen glossy black. 



Hab. — Para. Type in the British Museum. 



50. Pseudomyrma simplex. 



Worker.— Length If line. Pale reddish -yellow, very 

 smooth and shining, a pale fuscous spot on each side of 



