56. NEMATUS. 149 



testaceous ; pectus black in the middle ; a black line down the hind 

 legs. Wings hyaline ; nervures piceous ; stigma yellowish ; three 

 submarginal cells. 



This species appears to be allied to N. crassus, Esch. (ohtusus, 

 Kirb.), from Alaska. 



Hah. Hudson's Bay. 



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



Albany River. 



346. Nematus placentus. 



Neniatus placentus, Nort. Trans. Amer. Ent. Soc. i. p. 213 (1867). 

 Hah. Canada, Labrador. 



347. Nematus agilis. 

 Nematus agilis, Cress. Trans. Amer. Ent. Soc. viii. p. 9 (1880). 

 Hah. Nevada. 



348. Nematus nevadensis. 



Nematus nevadensis, Cress. Trans. Amer. Ent. Soc. viii. p. 9 (1880). 

 Hah. Nevada. 



349. Nematus inquilinus. 



Nematus inquilinus, Walsh, Proc. Ent. Soc. Phil. vi. p. 260 (1866) j 

 Nort. Trans. Amer. Ent. Soc. i. p. 213 (1867). 



Hah. North America. 



350. Nematus longulicornis. 



Nematus longulicornis, Nort. Trans. Amer. Ent. Soc. i. p. 214, 



n. 37 (1867). 

 Nematus longicornis, Say {nee Esch.), Post. Journ. i. p. 219, n. 3 



(1835). 



Hah. North America. 



351. Nematus trilineatus. 



Nematus trilineatus, Nort. Trans. Amer. Ent, Soc. i. p. 215 (1867). 

 Hah. North America. 



352. Nematus vertebratus. 



Nematus vertebratus, Say, Post. Journ. i. p. 218 (1835); Nort. Trans: 

 Amer. Ent. Soc. i. p. 215 (1867). 



Hah. Indiana, Connecticut. 



