96 THE ENTOMOLOGIST. 



shining, single, and somewhat thin. On the 27th I cut open 

 the cocoon spun on the 18th, and found in it a female pupa 

 of a greenish tint: eyes black, antenna; and legs transparent 

 white, wing-cases yellow. At the apex of the abdomen, 

 where the saw was distinctly perceptible, was the shrivelled- 

 up larval skin. By the evening of the 1st of June the pupa 

 in question had become of a blackish green colour; and oo 

 the morning of the 2nd the head, thorax and dorsum of the 

 abdomen, as also the antennae, were black ; the ventral 

 surface was covered with black transverse plates; the sides 

 and interstices of the abdomen (the skin between the said 

 plates), as also the wings and the sheath of the saw, were 

 sordid olive-green ; legs very pale ferruginous. The little animal 

 was lying on its back, and drew up its legs from time to time, 

 from which it was concluded that it would make its appear- 

 ance in the winged state on the following day ; which proved 

 to be the case, for on the morning of the 3rd I found the 

 wasp had shed the pupa skin : two days later two others 

 emerged from the cocoon, and another on the day after. The 

 insect which I had taken out of the cocoon in the pupa state 

 did not attain its full coloration during the first two days 

 (the black was decidedly of an olive tint), while the others 

 made their appearance entirely of a deep shining black : it 

 seems to follow from this that the imago remains a day or 

 two in the cocoon after shedding the last skin. 



The description of the imago is as follows : — the whole 

 body is shining black with the exception of the trophi, the 

 legs, the squamulaj, and, in the case of some individuals, the 

 anus and the anal processes; the upper lip, which is non- 

 emarginate, is reddish yellow, as are also the bases of the 

 mandibles, the apices of these latter being black ; the four 

 palpi are pale greenish yellow, the base of the first joint 

 being black; the labium is also black; the legs are pale 

 orange, the following parts being black or cinereous, namely, 

 the coxa?, some spots at the base of the anterior and inter- 

 mediate femora, the four last joints of the tarsi of the first and 

 second pair, the entire tarsi, and the apex of the tibia; of the 

 posterior pair. In some examples the anterior legs are 

 somewhat more yellowish ; in others distinctly red. The 

 females are larger and — especially as regards the abdomen — 

 broader than the males ; besides which there is a difference 



