Jfo. 1. ] l^fW Gnll-waklng Aphul. 73 



iiif;^ ill the diy bed o£ a broad stony ravine about 3,000 feet ai)Ove sea- 

 level near Harnai in the Sind-Peshin section of the North-Western 

 Railway. " Almost every tree had a dozen or more of these g-alls 

 towards the extremities of the branches. They were in every stage; 

 some empty, some opening", and the flies swarming out "; some still with 

 the immature insects enclosed. 



The galls which I examined in December contained only a few pupae 

 and larvae. The grey mass before noted is nearly insoluble in water, 

 but neverthek^ss it had a soapy flavour on the tongue. 



Two of the excrescences contained also the caterj)illar of some lepi- 

 dopterous insect, each entangled in its own web. 



They were quite lively and fat, about three-qnarters of an inch long, 

 and did not appear famished, although they cannot have eaten green 

 food for many previous weeks. It is not very likely that they consumed 

 the aphidis imprisoned in the galls. 



In conclusion^ I may note that the European PevipJiigtis coruicularius 

 of Pusserini constructs a long bean-shaped gall with a pointed top. It 

 has been figured by M. L. Courchet in '* Etude sur les Galles produites 

 par les Aphidiens,'"' Montpellier 1879, see part 1, figure 4. He says 

 this structure does not exceed in size that of a haricot- bean. Figures 

 also are given in this same memoir of the antinnae and the wings. In 

 all these particulars F. cornicularius diflfers from the Indian Femphigus^ 

 although botii ieed on dilfereut species of Pistacia, and have a close 

 affinity. 



Haslemeke. 

 IQ Jannnry 1S9'?. 



