415 



There were also between one and two hundred larvae. 



inch. grains. 



The length of the females 0.82 Average weight, 3.90 

 " " males 0.70 « " 1.G8 



« " neuters 0.50 " ** 0.87 



When placed in alcohol the males all floated, but the females 

 and neuters sank to the bottom. 



Females. The top of the head and eyes are black ; a narrow 

 yellow stripe descends along the sides of the head, behind the 

 eyes as far as the base of the jaws ; the forehead is yellow, as 

 also the clypeus and jaws, these last being bordered with black ; 

 the base of each antenna is surrounded by black ; a yellow spot, 

 rounded above and pointed below, occupies the emargination of 

 each eye, its point ending near the base of the antenna. On the 

 middle of the face a vertical black stripe extends from the fore- 

 head on to the clypeus, and on either side of the lower end of it is 

 a black dot. The whole face in covered with hairs, those on the 

 top of the head are black and long, the others shorter and of the 

 color of the surface on which they rest. 



There are three ocelli on the top of the head, forming a trian- 

 gle with the apex forwards. 



The antennae have thirteen joints ; * the first is short, the sec- 

 ond is long, and both are hairy. The end of the antenna is 

 club-shaped. The jaws are quadrangular and bordered with 

 black ; the cutting edge is obliquely truncated, three-toothed, the 

 teeth confined to the hinder half of the edge, and the hinder 

 angle being the most prominent. 



The maxillary palpi are six jointed. 



The lip consists of three parts ; the middle broadest, bilobed 

 at its free end ; the lateral pieces are much more slender, and 

 separated from the middle one by a deep cleft. There is a dark 

 spot (glandular ?) on each lobe of the middle piece, and on the 

 end of each lateral piece. The labial palpi are four jointed, the 

 points longer and more slender than those of the maxillary palpi. 



* Westwood states that in the Vespidse, the antennae have twelve joints in 

 the females and neuters and thirteen in the males; by reference to his figures it 

 appears that he has overlooked the basal joint, which is very small and imbed- 

 ded in the surface of the face. See Introd. to Modern Classif. of Insects. Vol. 

 ii. p. 244. London: 1840. 



