70 Mr. F. Smith on some new Genera ami Specks 



brown ; the femora pale fusco-testaeeous, subpilose, and slightly shining ; 

 the abdomen pale rufo-testaceous ; the mandibles and anterior mar- 

 gin of the face narrowly pale rufo-testaeeous ; the antennas fuscous, 

 with the extreme base and apex of the scape, and four or five of the 

 apical joints of the flagellum pale testaceous; eyes ovate, very large, 

 occupying nearly the wbole of the sides of the head ; the tibia? and 

 tarsi pale rufo-testaceous, the posterior pair of the latter slightly fus- 

 cous ; the first node of the abdomen with a slender petiole. 

 Hub. Ega. In the Collection of the British Museum. 



2. Pseudomyrma agilis. 



P. capite thoraceque nigro-seneis ; mandibulis pallide testaceis ; antennis, 

 pedibus abdomineque pallide ferrugineis. 



Worker. Length 4 lines. Head and thorax nigro-seneous ; the head 

 large, much wider than the thorax ; eyes large, prominent, and ovate ; 

 the anterior margin of the face and the mandibles pale testaceous ; the 

 antenna} rufo-testaceous, slightly fuscous above. Thorax flattened 

 above, and having a shining silky gloss ; the legs rufo-testaceous, the 

 coxae, trochanters, and base of the femora slightly fuscous. Abdomen 

 pale ferruginous ; the petiole slender ; covered with a short pale pubes- 

 cence, the apex with a few long dark hairs. 



Hub. St. Paul (Brazil) ; captured by Mr. II. W. Bates. In the Collection 

 of the British Museum. 



3. Pseudomyrma concolor. 



P. polita, rufo-fulva; pedibus concoloribus ; scutello et spatio ocellari 

 fuscis. 



Female. Length 4 lines. Shining fulvous-red ; the head oblong, palest 

 anteriorly ; the eyes, ocelli, and space between them black. The thorax 

 elongate-ovate; the scutellum and post-scutellum black. Abdomen 

 oblong, pointed at the apex ; the first node clavate, short and stout ; 

 the second node subglobose. 



Hub. St. Paul (Brazil). In the Collection of the British Museum. 



4. Pseudomyrma atripes. 



P. polita, pallide fulva; abdominis segmentis duobus basalibus nigra 

 varicgatis ; pedibus mediis et posticis nigricantibus. 



Worker. Length 4£ lines. Pale fulvous ; the anterior margin of the 

 face and also the mandibles pale testaceous, the scape and teeth black ; 

 the flagellum fuscous, with three or four of the apical joints fulvous. 

 The thorax flattened above, the metathorax obliquely rounded ; the 

 thorax narrower than the head, broadest in front, with the anterior 

 margin slightly rounded; the intermediate and posterior tarsi nearly 

 black, the tibiae fuscous outside. The petiole and three spots on the 



