74 CONTRIBUTIONS TO CANADIAN PALiEONTOLOGY. 



Patrobus frigidus sp. nov. 

 PI. VII, Fig. 6. 



A nearly complete elytron with only the tip broken represents appa- 

 rently another species of Patrobus, in which the elytron is about three 

 times as long as broad, dark chocolate brown, profusely and minutely 

 punctate throughout with pallid dots having a reddish tinge, the humerus 

 well rounded, the strise well defined but not deeply impressed, rather 

 obscurely and minutely impresso-punctate, the intervals faintly convex. 

 It does not appear to be very close to any of our living species, but nearest 

 perhaps to P. rugicollis Rand.; the convexity of the intervals is much as 

 in that species, as is also the punctuation of the strise, but this is a little 

 more pronounced in the fossil, which is also a little smaller than P. 

 rugicollis ; the profuse punctuation in the colouring is quite peculiar. 

 Length of fragment, i-S""; length of restored elytron, 5-2™; breadth, 

 1-75°"°. 



One specimen : No. 16793, Reservoir Park, Toronto. 



Pterosticlius abrogatus. 



Pterostichus abrogatus Scudd., Tert. Ins. N.A., 525, pi. i, fig. 39 (1890). 

 Two additional specimens have, been found : No. 1677? from Scarboro; 

 and No. 16781 from Reservoir Park, Toronto. 



Pterosticlius dormitans. 



Pterostichus dormitans Scudd., Tert. Ins. -N.A., 526, pi. i, figs. 49, 55 



(1890). 



The original locality for this species was near Cleveland, Ohio ; a speci- 

 men, No. 16802, is now found at Scarborough. 



Pterostichus fractus. 



Pterostichus fractus Scudd., Tert. Ins. N.A., 527, pi. i, figs. 29, 30 



(1890). 

 An additional specimen, No. 16792, was found at Scarborough. 



Pterostichus destructus. 



Pterostichus destructus Scudd., Tert. Ins. N. A., 527, pi. I, fig. 46 (1890). 

 An additional specimen, No. 16801, occurs among the material from 

 Reservoir Park, Toronto. 



