54 Observations on Cynipidae. 



[The stalked spindle gall is found in July and August on Quercits 

 sesstliflora. 



Inquilines. Synergus nervost4s and S. vulgaris. 



Parasite. Siphonura brevicauda. Cameron considers Aphilotrix 

 callidonia the same as Aphilotrix quadrilineata and sa3's he can find 

 no distinguishing characters in the two flies. Cameron, Hymenoptera, 

 vol. iv. p. 97.] 



11^. Andricus cirratus. n. sp. 



This gall has not been described before. I have 

 chosen the title cirratus on account of the tuft of hair 

 {cirrus) which the gall bears on its apex. 



Gall. Size about 2 mm. ; oval with a rounded point ; 

 when fresh of a green, and when mature of a brownish 

 colour. The rounded end of the gall bears a tuft of 

 long thick whitish hairs three or four times the length 

 of the gall. The gall is placed on the stalk of the male 

 catkin ; at its base two shallow impressions may be 

 recognized which are derived from the sutures of the 

 anthers from which the gall sprang. The galls are 

 often placed so closely together that they appear to 

 form one woolly mass ; the separate catkins are then 

 more or less distorted and only a white tuft of hair can 

 be seen projecting from the open bud. (Fig. 11^.) 

 The fly is very easily reared if the galls are collected 

 at the end of May or the beginning of June. 



Fly. Length 1-5 mm. ; black ; thorax dull ; scutellum 

 rough ; abdomen reddish yellow on the sides ; legs 

 uniformly citron yellow, the posterior trochanters dark ; 

 antennae testaceous with dark apices. The males 

 are similarly coloured, but the abdomen is somewhat 

 lighter. 



Experimental breeding. When in the beginning of 



