rnLKoi'TKKA-rAKAIIID.K. ;,!>;; 



littlo more than rectangular and well defined, the sides convex, the poste- 

 rior ;ni'_:'l'-> verv Hindi rounded off, the hind margin otherwise gently con- 

 vex; it is broadest slightly behind the middle, strongly margined at the 

 sides, followed bv a distinct neck, which is half the width of the pronotum. 

 The elvtra are oval, strongly margined, the humeral angles almost as 

 Strongly rounded as the hinder margin, the stria- coarse, with no indication 

 of punctures. 



Length of body, C""" ; of pronotum, 1.4"""; of elytra, :5.25 mn ' ; second 

 specimen, 3.5'""'; width of pn turn. 1 75"' m ; of elytra, -J.2 (2.2o) n "". 



Green River, Wyoming. Two specimens, Nos. 83, 85 (Dr. A. S. 

 Packard). 



DIl'lJM'IIILA Mnille. 



In this genus I place provisionally a fine but headless specimen from 

 Florissant, rather imperfectly preserved as regards the elytra, and which was 

 accidentally placed with the Heteroptera from appearing to have a large 

 scutellum, due to the impress of underlying parts. There seems to be 

 nothing nearer among our native Coleoptera. No fossil form has previously 

 been recognized in this genus, which is a widely distributed one in various 

 parts of the globe. 



I >IH,OC!III,A ? HENSIIAWI. 



I'l. 28, Fifj. 9. 



A species is indicated of the size and general appearance of I >. major, 

 but it differs so much that it is very doubtful if it belongs to the genus. 

 Tin- finding of fresh material will probably determine this. The head is 

 jacking. The form of the thorax is somewhat similar so far as can be told ; 

 much has been worked out from the stone since the drawing was made, but 

 tin- front part is imperfect bv the removal of an angular fragment tollowinu 

 an angulate sulcation not uncommon in Carabid;c, but here excessively de,-|> ; 

 I he thorax narrows more rapidly and considerably than in 1 >. major, with 

 airjnlate rather than sinuate sides, so that the thorax is one-halt wider at 

 base and two-thirds wider at the widest than at apex. The ovate form of 

 llie abdomen with the closed elytra is rather more like that of Carabus than 

 of Diplochila, the elytra apparently furnished with distant slightly im punctate 

 stria-. The !_:> an- constructed on the carahid type; the middle and hind 



