HYMENOPTERA. 349 



the foui'th at its base, of a pale yellow ; beneath, the second and 

 third segments have on each side a minute yellow spot. 



Hub. Shanghai. (Coll. R. Fortune, Esq.) 



47. Larra reversa. B.M. 



Female. Length 2| lines. — Black : the clypeus and a spot 

 above, the scape in front, the anterior margin of the labrum and 

 the palpi, yellow. Thorax : the posterior margin of the pro- 

 thorax, the tubercles, a spot on the tegulse, another behind 

 them, a spot on each side of the scutellum, another on the post- 

 scutellum, and the lateral margins of the metathorax, yellow; 

 the latter hollowed out behind ; the anterior femora beneath, a 

 stripe on the intei-mediate femora beneath at their apex, the 

 anterior and intermediate tibiae and tarsi in front, yellow ; the 

 posterior tibiae have a yellow stripe at their base above; the 

 wings hyaline, their nervures testaceous. Abdomen : an inter- 

 rupted yellow band on the basal segment, an entire one on the 

 apical margin of the second, widest laterally, a spot in the middle 

 of the margin of the third, a narrow band on the fourth, and a 

 spot on each side of the fourth ; the insect covered with a 

 scattered hoary pubescence. 



The male closely resembles the female, but differs in having 

 the clypeus black, and in having five entire yellow bands on the 

 abdomen, the first broad and siuuated in the middle of its ante- 

 rior margin. 



Hub. Sumatra. 



This species closely resembles the Larra tridentata, but is 

 quite distinct, the colouring of the face of the sexes being the 

 reverse of the European species ; the abdomen is very delicately 

 punctured, whereas it is rather strongly impressed in L, tridentata. 



48. Larra rufescens. B.M. 



Female. Length 10 lines. — Rufo-fulvous : the face, clypeus, 

 labrum, antennas in front, and the cheeks, reddish-yellow; the 

 mesothorax, the posterior margin of the scutellum, the post- 

 scutellum, and an arched stripe on the metathorax, yellow ; the 

 legs dashed with yellow; the wings yellow-hyaline, a fuscous 

 cloud occupying the marginal and the second and third submar- 

 ginal cells ; the nervures ferruginous ; the abdomen has an 

 ovate-yellow macula on each side of the three basal segments, 

 that on the first segment minute. 



Var. a. The apical margins of the three basal segments fuscous, 

 or black. 



Hab. India (Punjaub). 



