HYMENOPTERA. 155 



6. PSEUDOMYRMA ELEGANS. 



Pseudomyrma elegans, Smith, Trans. Ent. Soc. new ser. iii. 159. 



6g- 

 Hab. Brazil (Para). 



This species has the head and abdomen black, the thorax, legs 

 and nodes of the petiole, ferruginous ; the scape in front, the 

 base of the flagellum, the anterior margin of the face and the 

 mandibles, ferruginous ; it is 3 lines long. 



7. PSEUDOMYRMA NIGRICEPS. B.M. 

 Pseudomyrma nigriceps, Smith, Trans. Ent. Soc. new ser. iii. 159. 



75- 



Hab. Brazil (Santarem). 



This species is 2 lines long, of a ferruginous colour, with the 

 head black, and the apical segments of the abdomen fuscous ; 

 the thorax and first node of the peduncle flattened above, the 

 lateral margins slightly raised, forming sharp carinae ; the mouth 

 and antennae red, the latter fuscous towards the apex above. 



8. PSEUDOMYRMA OCULATA. B.M. 



Pseudomyrma oculata, Smith, Trans. Ent. Soc. new ser. iii. 159. 

 8. pi. 13. f. 9 ? . 



Hab. Brazil. 



This curious species is distinguished by the remarkable form 

 of the head, which is two-thirds the length of the thorax ; it is 

 elongate with its sides parallel, and wider than the thorax ; of a 

 fusco- testaceous colour with hyaline wings. 



9. PSEUDOMYRMA CEPHALICA. PI. X. figs. 25, 26. B.M. 

 Pseudomyrma cephalica, Smith, Trans. Ent. Soc. new ser. iii. 168. 



He???. 

 Hab. Brazil (Villa Nova). 



All the sexes of this species were found by Mr. H. W. Bates 

 in their formicarium, the chambers of which were excavated in 

 dead twigs. The male is 2i lines long, and of a fusco-testaceous 

 colour, the face, clypeus, mandibles, antennas and legs being 

 pale testaceous ; the wings are colourless and beautifully iri- 

 descent. The female is of a reddish-yellow, with the eyes, the 

 ocelli, the basal margin of the first segment of the abdomen, and 

 the two apical segments, black ; the head elongate, with the sides 

 parallel. The, worker is of the same colour as the female, but 



