GENUS ANACHARIS. 187 



in size, changing also colour, becoming more grey, 

 through the contents of the food canal. It now re- 

 mains motionless two days, thrusts the apex of the 

 abdomen through the meshes of the cocoon, and 

 empties the intestines, including the undigested chiti- 

 nous parts of the Hemerobius. In about five days it 

 pupates in the cocoon ; the pupa state lasts about 

 fifteen days, the imago remains two days longer in the 

 cocoon before leaving it finally. 



The maggot-like larva has twelve body-segments, is 

 spindle-shaped with the greatest diameter on the sixth, 

 seventh, and eighth segments. The head is perpendi- 

 cular to the long axis of the body ; looked at in front 

 it appears circular ; is tolerably flat, and projects very 

 little over the considerably wider first body-segment ; 

 on the side is a curved, weaker-coloured streak, corre- 

 sponding to the place of the future compound eyes of 

 the imago. The mandibles are almost triangular, and 

 have a long tooth at the apex, and two short ones near 

 each other on the inner side. The first body-segment 

 has on the upper side two rounded protuberances ; the 

 second to ninth segments have on the back two fleshy 

 conically- pointed teeth, a peculiarity found in no other 

 hymenopterous larva. The tenth, eleventh, and 

 twelfth are unarmed, posteriorly reduced in size; the 

 last has a reniform anus. The stigmas are in seg- 

 ments two to ten. See PL XIV, fig. 15* 



The larvaB are transparent and white, except the 

 mandibles, the streak on the head, and the .stigmas. 



The pupa has the form of the imago, except that the 

 petiole is not extended, but is directed backwards and 

 situated close to the hinder coxae. The legs, .wings, 

 and antennas are placed along the body as usual. 



Synopsis of Species. 



1 (4) Scutellum rugose. 



2 (3) Legs clear yellow, petiole one half longer than the second seg- 



ment. Typica. 



3 (2) Legs reddish, more or less fuscous or black ; petiole not longer 



than the second segment. Immunis. 



