HYMENOPTERA. 131 



50. POLYBIA RUFIDENS. 



Polybia rufi dens, Sauss. Mon. Guepes Soc. 204. 48. 

 Hab. Cayenne. 



51. POLYBIA RUFIGASTRA. 



Polybia rufigastra, Sauss. Mon. Guepes Soc. 204. 49. 

 Hab. America. 



52. POLYBIA PEDICULATA. 



Polybia pediculata, Sauss. Mon. Guepes Soc. 205. 50. t. 26. f. 7. 

 Hab. Brazil. 



53. POLYBIA FILIFORMIS. 



Polybia filiformis, Sauss. Mon. Guepes Soc. 206. 51 . t. 26. f. 8. 

 Hab. Brazil. 



54. POLYBIA ALBO-PICTA. 



Female. Length 9 mill. Black : the clypeus angular in front 

 and of a yellowish white, a spot above the clypeus and a broad 

 stripe at the inner orbit of the eyes of the same colour ; a white 

 line behind the eyes. The posterior border of the prothorax, 

 the tegulse, a line beneath the wings, the scutellum and post- 

 scutellum with a minute spot on each side of both, and a large 

 spot on each side of the metathorax, white ; the wings fusco- 

 hyaline, the superior pair with a fuscous stain along their anterior 

 margin, which entirely occupies the marginal cell; the apical 

 joints of the tarsi fusco-ferruginous. Abdomen : the apical 

 margin of the basal petiolated segment with a broad white 

 fascia ; the apical margins of the second and three following seg- 

 ments with a w r hite border, the inner margin of which is more or 

 less irregular. 



Hab. Brazil. (Coll. W. Swainson, Esq.) 



55. POLYBIA BICOLOR. B.M. 



Female. Length 10 mill. Head and thorax black; abdomen 

 of a reddish brown ; the clypeus produced into an obtuse point 

 anteriorly, with an impressed line at the apex ; the tips of the 

 mandibles ferruginous. Thorax elongate-ovate, smooth and 

 slightly shining above ; the posterior margin of the prothorax 

 and the basal margin of the scutellum with a narrow yellow line ; 



