HYMENOPTERA. 305 



colour, and surrounded with a thick fringe of pale fulvous ; 

 the tegulae pale fulvo-testaceous, the wings fulvo-hyaline, the 

 nervures ferruginous ; the femora dark rufo-testaceous, the 

 tibiae and tarsi ferruginous, and clothed with fulvous pubescence. 

 Abdomen nigro-aeneous, the margins of the segments pale tes- 

 taceous, the base has a thin covering of pale fulvous pubescence, 

 the second and third segments have a broad fascia of short, dense, 

 fulvous pubescence, the fom-th segment entirely covered and the 

 fifth laterally clothed v^ith a similar pubescence ; the fifth in 

 the middle has a fuscous pubescence, as well as the sides of the 

 sixth segment. 



Hab. Brazil (Para). (Coll. F. Smith.) 



41. Tetralonia fulvipes. 



Male. Length 5 lines. — Black, the pubescence on the head, 

 thorax and legs fulvous, the clypeus, labrum, and the base and 

 apex of the mandibles yellow ; the middle of the latter ferrugi- 

 nous ; the flagellum fulvous beneath ; the tegulae rufo-testaceous, 

 the wings fulvo-hyaline, the nervures and base of the wings fer- 

 ruginous, the legs ferruginous, the coxae and base of the femora 

 shghtly fuscous ; the abdomen has an aeneous tinge, the apical 

 margins of the segments broadly pale testaceous ; the base of 

 the abdomen has a little pale fulvous pubescence, the basal 

 margin of the second segment has a band of pale pubescence, 

 the fourth and fifth segments have on their apical margins late- 

 rally a fringe of pale pubescence, all the segments have on their 

 middle some erect fuscous hairs. 



Hab. Brazil. (Coll. F. Smith.) 



42. Tetralonia nigro-^enea. 



Female. Length 5 lines. — Head and thorax black, the face 

 thinly clothed with a short griseous pubescence, on the cheeks 

 it is of the same colour, but longer ; the flagellum, except the 

 three basal joints, fulvous beneath ; the labrum testaceous, the 

 mandibles ferruginous at their apex ; the pubescence on the 

 thorax and the anterior and intermediate legs black; on the 

 metathorax and base of the abdomen it is fulvo-ochraceous ; 

 wings subhyaline, nervures and tegulae ferruginous ; the tarsi 

 ferruginous beneath, as well as the claw-joint, the claws black ; 

 the posterior tibiae have a scopa of pale fulvous pubescence, that 

 on the tarsi beneath bright fulvous. Abdomen nigro-asneous, 

 the second segment has a band at its base and another a little 

 beyond the middle, a third on the third segment towards the 

 base; the fourth a band on its apical margin and an oblique 



