COLEOPTERA— SCARAB^ID^. 487 



markings at the tip of the elytra, whicli seems to be characteristic of the 

 fossil. In color it varies extremely ; in one (No. 14582) it is bluish purple : 

 in another (No. 14566) it is deep brilliant violet; still another (No. 14577) 

 lias it dark metallic green. In all, the colors are as fresh as if living. The 

 punctured striaj are rather deep and the whole surface of the elytra trans- 

 versely wrinkled at the punctures. 



Length of elytron, 5""° ; breadth, 1.45"". 



Interglacial clays of Scarboro, Ontario. Five specimens, Nos. 14566, 

 14573, 14577, 14581, 14582 (G. J. Hinde). 



Family SCARAB.EDI.E Leach. 



TROX Fabricius. 



Teox oustaleti. 



PI. 2, Fig. 22. 



Trox oustaleti Scudd., Rep. Progr. Geol. Surv. Can., 1877-1878, 179-180B (1879). 



A single elytron, well preserved, appears^ to represent a species of Trox 

 of about the size of T. terrestris Say, but with rather slender elytra. The 

 elytron is subequal, narrowing rapidly and regularly at the tip, well arched, 

 and was apparently still more arched originally, the middle portion having 

 a flattened appearance, as if from pressure, with a narrow flattened outer 

 margin ; the surface is completely and uniformly covered with thirteen or 

 fourteen equal equidistant rows of frequent dull tubercles, as distant from 

 one another in the rows as each row from its neighbor, and obsolescent 

 toward the apex and the base, especially towards the former. In certain 

 places there is a very slight appearance of greater prominence to every 

 fourth row, which would hardly be noticed if its resemblance to modern 

 species of Trox did not lead one to look for it ; the extreme tip is broken. 

 The color is dark-brown, approaching black, but the whole central portion 

 of a faded brown, nearly resembling the natural color of the stone in which 

 it is preserved. 



Length of elytron, 4.25""" ; breadth, 1.85""°. 



Named after M. Emile Oustalet, of the Jardin des Plantes, whose re- 

 searches on the Tertiary insects of Auvergne and Aix are well known. 



• Nine-Mile Creek, British Columbia. One specimen. No. 61 (Dr. G. 

 M Dawson). 



