56. NEMATUS. 147 



333. Nematus coryli. 



Nematus corylus, Cress. Trans. Amer. Ent. Soc. viii. p. 8 (1880). 

 Hah. Pennsylvania. 



334. Nematus castaneus. 

 (Plate TIL fig. 16.) 



Exp. al. 9 lin., long. corp. A.\ lin. 



Chestnut-colour, head, mesothorax, and pleura darker ; antennae, 

 a large square spot on the vertex, a spot in front of the thorax, and 

 the pectus black ; an. irregular black spot covering the hinder half 

 of the scutellum ; the postscutellum, a portion of the first segment 

 of the abdomen, and extremities of hind tibiae and hind tarsi dusky. 

 Wings hyaline, fore wings slightly yellowish ; stigma and nervures 

 piceous. 



Hab. Hudson's Bay. 



a, b. 2 • (Types of species.) St. Martin's Falls, Dr. Barnston. 



Albany River. 



335. Nematus neglectus. 

 (Plate YIT. fig. 15.) 



Exp. al. 8 lin., long. corp. 4 lin. 



Head and thorax black, mouth and prothorax pale, a more or less 

 complete testaceous ring round the eyes, sides of pectus some- 

 times with a dull rufous spot ; abdomen testaceous, first two seg- 

 ments black at base above ; legs testaceous ; front femora black at 

 base ; middle femora and hind legs black ; hind tibiae rufous beneath. 

 Wings hyaline, male with three and female with four submarginal 

 cells ; stigma yellowish. 



Hab. Hudson's Bay. 

 a-c. S 2 • (Types of species.) St. Martin's Falls. Dr. Barnston. 



336. Nematus fur. 



Nematus fur, Walsh, Proc. Ent. Soc. Phil, vi. p. 263 (1866). 

 Hab, North America. 



337. Nematus hudsonicus. 



Nematus hudsonicus ; Nort. Trans. Amer. Ent, Soc, i. p. 207 (1867). 



Hab. North America. 



i2 



