yS THE CANADIAN EN'J'OMOLOGiST. 



and narrow, and apparently closed by the somewhat thickened border of 

 the wing. This thickened border of the wing scarcely deserves to be 

 called a vein. Legs : Coxas and trochanters clear shining black, changing 

 below to yellowish brown, which is the color of the remaining parts. Color 

 of the posterior pair a little darker than the others, particularly near the 

 body.. Abdomen shining black, the first segment an extremely slender 

 pedicel, which is slightly enlarged in the middle. 



Length, body .12, wing .16, antennae .12. 



Female : Head broader than in the male. Ocelli and eyes much less 

 prominent, face twice as broad. Antennae slender, i)ale brown at the base 

 changing to dusky brown above. Some shades darker throughout than the 

 male antennae and only two-thirds as long ; 14 joints. Thorax like the 

 male except that there are two faint parapsidal depressions, hardly grooves. 

 Wings smaller and shorter. Color and venation the same. Legs paler. 

 Abdomen large, shining, black, not distinctly pedicilate. This appears 

 early in x^jiril. 



Length, body .13, wing .14, antennae .08. 



Cynips Pattoni, n. sp. 



Galls, clusters of larval cells along the midvein of the leaves of Qner- 

 cus obtiisiloba, on the under side, and standing perpendicular to its surface. 

 The cells are completely hidden in a short, dense brownish wool. The 

 largest clusters often extend along the midvein more than half the length 

 ot the leaf. They are found on young trees, and usually on the leaves 

 near the top of the stronger growing shoots. The insects live over winter 

 in the galls. My specimens gathered in October were kept in a warm 

 room and the insects came out in the February following. The galls 

 resemble in their woolly covering those of C. flocci of Walsh, but the 

 latter are round and the woolly hairs are longer, and the species is only 

 found on Quercus alba.  C. Pattoni was discovered in 1876 on West 

 Rock, in New Haven, Conn., by Mr. \\ . H. Patton, from whom I have 



I 



received several interesting species of gall insects, and to whom, in 

 acknowledgment of my indebtedness, I dedicate this species. 



Gall tiy : Head reddish brown. Antennae 14-jointed, dusky brown. 



The last two joints indistinctly separated by a closely connected suture. 



Entire head and face covered with short white hairs. The lips of the 



mandibles black. Thorax very dark shining btown, that in certain 



■positions appears quite black ; surface finely and evenly reticulate. Par- 



