92 THE CANADIAN ENTOMOLOGIST. 



The above specimens vary a good deal among themselves ; some of 

 the varieties are in colour the same as originalis, Nort., and as no 

 structural character can be found to separate opimus from originalis, I think 

 that they should be considered the same. The above specimens vary as 

 follows: The abdominal bands form a narrow line to a rather broad band; 

 the pleural mark frequently wanting ; the amount of black on the legs 

 varies ; the scutellum in one case is black ; and the marks above the 

 posterior coxie are sometimes reduced. 



This species has a very wide range in Colorado ; it ranges from the 

 Upper Austral Zone to the Arctic Alpine. It was taken at Olympia, 

 Washington, by T. Kincaid (MacG., Can. Ent., Oct., 1S93, p. 240). 



Protemphytus, new genus. 



Head and thorax opaque, with dense, large punctures. Malar space 

 distinct ; clypeus emarginate ; antenna' stout, moderately short. Tarsal 

 claws simple, rather long. Fore wings with three cubital cells, the 

 first long and receiving the first recurrent nervure a little beyond the 

 middle ; second short, wider on the apical margin, receiving the second 

 recurrent nervure about the middle. Transverse radial joining the radius 

 beyond the second transverse cubitus. Hind wings without a discal cell ; 

 lanceolate cell of hind wings shortly petiolate at apex. Species small. 



Type Emphytus coloradensis, Weldon. 



This genus contains so far only one species, coloradensis. It has the 

 following bibliography : 

 Emphytus coloradensis, Weldon, [Can. Ent., Sept., 1907, p. 304]. 



Original description. 

 Emphytus coloradensis, Roh. [Can. Ent., June, 1908, p. 179], gives 

 some notes to aid in determination. 



Protemphytus is near to Emphytus, Klug, but may be separated by 

 the opaque head and thorax, and the different position of the transverse 

 radius. 



Lyda nigripes, Cress. — I have seen a <$ of this species from Calif, 

 collected at Stanford University. It belongs to the genus Lyda, as 

 restricted by Dr. Ashmead. 



Lyda nigrita, Cress. — I have also seen a £ of this species collected 

 at the same place as L. nigripes. It also belongs to the genus Lyda as 

 restricted by Dr. Ashmead. Both were received from Mr. Doane. 



