Wickham — New Fossil Coleoptera from Florissant. 129 



side profile accounts for the lack of comparative measure- 

 ments of the prothoracic proportions in the foregoing description. 



Named for Dr. "W". M. Wheeler, who lias figured the type 

 as an undescribed Meloid in the American Museum Journal, 

 vol. vi, p. 202. 



Holotype in Peabody Museum of Yale University. Cat. 

 No. T. 



Trox Fabr. 



T. antiquus n. sp. Form oblong, broader behind, widest 

 about one third before the apex of the elytra. Head concealed. 

 Prothorax slightly less than twice as wide as long, broadest at 

 or very close to the base; sides regularly arcuately narrowing 

 to apex, which is much narrower than the base; surface finely, 

 fairly regularly granular, uneven. Base arcuately emarginate 

 each side for the reception of the elytra, each of which is 

 ornamented with about eight rows of small granular tubercles, 

 general surface uneven. There appears to have been a large 

 tubercle on each side of the suture about one fifth from the 

 base, but this may be fortuitous. Length 5'75 mm , width 3-25 mm . 



Station 14, Mrs. Cockerell. Collection number 274, Florissant 

 Expedition 1906. 



This species seems to have been about the size of a rather 

 small specimen of the recent T. cequalis, but with sculpture 

 more resembling T. atrox. 



Type in the British Museum of Natural History. 



Meracan tha Ki rby. 



M. lacicstris n. sp. . A profile is shown in fair preservation 

 exhibiting head, thorax, elytra and three legs, apparently the 

 hind pair and one of the middle. Head small, antennae 

 wanting except what may be the basal joint of one. This 

 joint is quite large and broad, but I believed it to be crushed. 

 The only palpus showing has the last joint distinctly trian- 

 gular. Prothorax longitudinally very convex, posterior margin 

 straight when viewed from the side. Elytra also strongly longi- 

 tudinally convex. Legs very long and slender, thighs strongly 

 clavate towards the tip, tarsi obscure. Length 10*50 mm , elytron 

 7*50 mm , hind femur 4-75 mm , hind tibia 4 mm . 



Station number 11. Collection number 222. Received from 

 Prof. Cockerell. Holotype in the Peabody Museum of Yale 

 University. Cat. No. 8. 



I am not able to decide definitely as to the probable nature 

 of the sculpture in this specimen. So much variation exists 

 in the fineness of the different layers of shale that it is frequently 

 hard to tell characters due to the insect from those dependent 



