154 HYMENOPTERA. 



This species is 5 lines in length, black, shining, and covered 

 with silky pile ; the mouth, anterior margin of the face, the fla- 

 gellum beneath, the articulations of the legs, the anterior tibiae, 

 and the tarsi, rufo-testaceous ; the first node of the peduncle 

 ferruginous. 



2. PSEUDOMYRMA UNICOLOR. 



Pseudomyrma unicolor, Smith, Trans. Ent. Soc. new ser. iii. 15S. 



2?. 

 Hab. Brazil. 



This insect is black, smooth and shining, covered with pale 

 glittering pile and scattered erect hairs; the thorax flattened 

 above ; the mandibles and claws of the tarsi rufo-testaceous. 



3. PSEUDOMYRMA TERMITARIA. B.M. 

 Pseudomyrma termitaria, Smith, Trans. Ent. Soc. new ser. iii. 



158. 3 ? g . 

 Hab. Brazil. 



Mr. Bates informs us that this species forms its elliptical 

 chamber or dwelling in the walls of the tumuli of a species of 

 white ant ; it is of a ferruginous colour, with the head and apical 

 segments of the abdomen black ; the margins of the segments of 

 the latter rufo-piceous ; the mandibles and antennae ferruginous, 

 the latter more or less fuscous above ; it is 3J- lines in length. 



4. PSEUDOMYRMA MACULATA. 



Pseudomyrma maculata, Smith, Trans. Ent. Soc. new ser. iii. 158. 



4. 

 Hab. Brazil. 



This species is 3 lines long, of a ferruginous colour, with the 

 abdomen and second node of the petiole fuscous ; there is also a 

 fuscous spot on the vertex enclosing the ocelli, and a fuscous 

 longitudinal stripe on the metathorax ; the eyes large and black, 

 the mandibles pale testaceous. 



5. PSEUDOMYRMA SERICATA. 



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



5?. 

 Hab. Brazil. 



This species is readily distinguished, being black, and covered 

 with a glittering silvery pile; the legs are dark rufo-testaceous, 

 with the anterior tibiae, knees and tarsi pale testaceous ; the tips 

 of the antennae, the anterior margin of the face, and the mandi- 

 bles, pale testaceous ; its length is 3J- lines. 



