ecuDDEn.] CANADIAN FOSSIL INSECTS. 75 



Fterosticlius depletvs sp. nov. 

 PI. VII., Fig, 3. 



A slender elytron, of which the apical third is gone, represents, appar- 

 ently, a species of Pterostichus near P. hudsonicus LeC. The eight striae 

 are delicately impressed and very finely punctate, the intervals flat and 

 the sutural stria meets the first, from which it is rather narrowly 

 separated, at a distance equal to less than half the basal width of the 

 elytron. It is of a dead black colour, more so than P. hudsonicus, and it 

 farther differs from that species in that all the striae are equally impressed, 

 instead of having the lateral strise subobsolete. The length of the pre- 

 served portion is 2*65""°, indicating an elytron about 4°"" long ; and its 

 width is 1 -S"". 



One specimen : No. 16809, Scarborough. 



Badister antecnrsor sp. nov. 

 PI. VII., Fig. 2. 



All but the apical fourth is preserved of an elytron which is, or was, a 

 little more than two and a half times as long as broad, with eight well 

 impressed impunctate dorsal strise, besides two deeply impressed striae on 

 the deflexed marginal portion, closely approximate, the ninth with acouple 

 of puncta well separated ; the humerus is strongly rounded, and between 

 the first and second strise at the base, is a supplementary stria, subcon- 

 tinuous with the distal portion of the first stria, and more than half as 

 long as the width of the elytron ; a single one of the dorsal puncta of the 

 third interval may be seen at about one third the distance from the apex 

 of the elytron, but is not shown in the figure ; the intervals are flat and 

 show an irregular, exceedingly fine cross striation. It seems to be nearly 

 allied to B. anthracinus LeC; but is slightly smaller, not so piceous, the 

 strise more sharply defined but yet not so deep, and it difiers further in 

 the character of the supplementary stria and the cross striation. The 

 fragment measures 3°"° in length ; the elytron was probably 3-4"" long, 

 and is 1-35'°" in breadth. 



One specimen : No. 16817, Logan's brickyard, Toronto. 



B. anthracinus is found in California, Oregon and Vancouver Island. 



Platynus ezi;eniiinatiis sp. nov. 



PI. VIII., Fig. 3. 



A single elytron with the apical fourth lost represents a species closely 

 allied to P. pusillus LeC. The strise are deeply impressed and very feebly 



