THK CANADIAN BNTOMOLOGiST. 101 



galls late in the foil, at least I have never been able to find them in the 

 galls in winter. 



Gall-fly : Head small, vertex wrinkled. Ocelli minute and very close 

 together. Face with short hairs which are longest about the mouth. 

 Antennae dark brown, 14-jointed, ist joint large, club-shai:)ed ; 2nd 

 broader than long, 3rd longer than the first two taken together, 4th as 

 long as the first two, the four next following gradually shorter, 9th and 

 remaining ones short and of equal length. Thorax covered with short 

 appressed yellowish white hairs, which nearly hide the punctate surface. 

 Parapsidal grooves : two parallel lines that extend rather more than half 

 way from the collare to the scntellum, and two, also parallel, that extend 

 half way from the scutellum to the collare, and a short line over the base 

 of each wing, all nearly parallel and equidistant. I^egs dark reddish 

 brown. Wings large, hyaline ; veins blackish brown, quite distinct, the 

 subcostal and 2nd transverse darkest. Areolet present, not large. Cubi- 

 tus reaches only half way from the areolet to the ist transverse. Veins 

 enclosing the open radial area stop abruptly before reaching the margin 

 of the wing. Abdomen black, shining ; ist segment (in dry specimens) 

 equals in length all the rest, and is covered with short white hairs on the 

 sides beneath the wings. Sheath of the ovipositor a dark yellowish brown. 



Length, body .16, wing .18, antennae .10. 



Described from numerous specimens in my collection. 



CVNIPS CICATRICULA, n. sp. 



Polythalamous galls on the midvein of the leaves of Qtierciis alba, 

 never more than one on a leaf, and situated sometimes at the base, but 

 usually from one-fourth to one-half way from the base, rarely above the 

 middle. They project one-third below and two-thirds above the surface 

 of the leaf. On the under side of the leaf they are rounded and on the 

 upper cone shaped. The gall is solid and somewhat fibrous, and in its 

 shorter diameter measures about one-half inch and in the longer from five 

 to seven-eights of an inch. The larval cells radiate in all directions from 

 the centre of the gall and are quite numerous. There is at or near the 

 summit of the cone a small scar or indentation which is always present 

 and so characteristic as to suggest the name I have given to the species. 



CvNiPS CAP.SULA, n. sp. 



Galls : Monothalamous, on slender pedicels on the margins of the 



