THE CANADIAN ENTOMOLOGIST. 75 



Gall-fly : Head black, vertex coarsely wrinkled. Ocelli large, black 

 arid shining. Antennse 14-jointed, only two-fhirds as long as the body ; 

 ist joint stout, club-shaped; 2nd short, ovate, almost globular; 3rd a 

 little longer than the two preceding taken together ; 4th equal to the ist 

 and 2nd together ; 5th to loth gradually shorter, nth to 14th very short, 

 sub-equal. Color, clear dark yellowish brown, changing to dusky 

 brown towards the tips. Face black, with fine hairs, broad, but vertically 

 quite narrow. Mandibles black, palpi clear dark shining brown. Thorax 

 black, coarsely rugose, the rugae crossing and nearly obliterating the par- 

 apsidal grooves. These, as far as traceable, are as follows : Two short 

 parallel lines from the coUare, one-third the distance to the scutellum ; two 

 lines from the collare to the scutellum, closely convergent on the latter. 

 A short, smooth line or ridge over the base of each wing. Scutellum 

 small, wrinkled ; fovae small, indistinct. The entire thorax and legs with 

 fine microscopic hairs. Legs light shining brown, posterior pair much 

 darker. Wings slightly dusky. Veins slender, except the ist and 2nd 

 transverse, which are heavy, and the latter has a dark cloud at the base 

 of the radial area. The longitudinal veins brown, becoming almost 

 colorless towards the apex of the wings. Areolet small, in some speci- 

 mens a minute translucent point. Radial area open. Abdomen shining 

 black, ist segment very long, with white hairs beneath the wings. The 

 posterior edge of all the segments a clear shining brown. Ventral sheath 

 same color. It is very small and the few hairs at and near the tip are 

 microscopic. 



Length, body .16, wing .16, antennae. 10. Des. from twenty living 

 specimens in my collection. 



Cynips Q. ficula, n. sp. 



Closely compressed clusters of monothalamous galls, sessile on and 

 surrounding the young branches of Q. macrocarpa, forming globular and 

 symmetrical masses sometimes two inches long and an inch and a half in 

 diameter, but usually about one-half this size. The individual galls in 

 these clusters assume a great variety of forms, by reason of the lateral 

 pressure which they exert upon each other. The most common form 

 resembles that of pressed figs, and this species bears a close resemblance 

 to the much smaller one which Dr. Fitch named C. q. ficus, but which 

 Mr. Walsh described as C. q. forticornis. The normal form would 

 undoubtedly be that of a regular cone attached by its apex to the branch. 



