1913] Fossil Beetles from Florissant. 363 



The hind wings are spread and exposed, showing the basal 

 portions of the venation quite well. A comparison of the 

 figure of the fossil with the accompanying one of the wing of 

 T. latipennis will show the close general correspondence be- 

 tween them. The dotted lines in the latter figure show as 

 transparent markings on the general ground, but in the fossil 

 the upper one of these is not visible while the lower one seems 

 to have been strongly pigmented. 



Xestobium Motsch. 



X. (?) alutaceum n. sp. (Plate I, Fig. 5). Form nor very elongate. 

 Head large, deflexed, eye about circular and rather small compared 

 with that of most recent Anobiini. Pronotum somewhat gibbous 

 dorsally at about the middle, projecting anteriorly over the head. 

 Elytron with a rather weak epipletiral lobe within which is a fine but 

 distinct stria, apex apparently rounded. Legs short and only moder- 

 ately stout. Length, from front of pronotum to abdominal apex, 

 6.65 nun. 



Type in the Museum of Princeton University, number 

 6575. 



In a general way, this species slightly resembles the Floris- 

 sant fossil Xylobiops laciistre, but the proportions are different 

 and the sculpture of the present species is very fine. The 

 entire upper surface shows traces of a minute scabrosity, 

 but the abdomen is almost entirely smooth. The elytra 

 are not striate except inside the epipleural margin. By the 

 small eyes, the size, sculpture and general form, this seems 

 to approach Xestobium, but the generic reference must be 

 considered provisional, the most dubious character being the 

 large head. 



Callidiopsites n. gen. 



This generic name is proposed for a Cerambycid fossil 

 which shows affinities with Callidium in the broad short form, 

 short stout antennse, heavy legs, transverse and nearly or 

 quite confluent front coxal cavities, and coarse elytral scuplture. 

 It differs in the mesosternum, being much narrower between 

 the middle coxse and the head very much larger. It is not 

 entirely in agreement with any of the recent genera of Callid- 

 ioides known to me and it seems better to give it a separate 

 generic assignment. The type is C. grandiceps, described 

 below. 



