79 



squarely (locked at the tip, leaving no signs of an exposed scutellum, 

 faintly and distantly punctulate. The outline of the middle coxai is im- 

 pressed through the remains of the insect, showing them to be shaped 

 as in Creophilus and Leistotrophus. The abdomen is as broad as the 

 thorax, not much longer than broad, broadly rounded apically, furnished 

 with hairs on the upper surface and apical tufts as in Creophilus villosus 

 (Grav.) ; there are, however, no signs of punctulation. 



Length of fragment 12'"'", of head 2.5"^'"; breadth of same, 3.75"""" ; 

 length of eyes, 2'"'"; breadth of same (as seen from above), .88"""; 

 length of tegmina, 1.75""" ; breadth of same, 2""" ; breadth of abdomen, 

 3.8'""' ; length of middle femora, 2.3'"'" ; breadth of same, .05'"'" ; length 

 of middle coxte, 2.5™'" ; breadth of same, 1.1"'" ; length of hind femora, 

 2'"'"; of hind tibipe, 2.5""". 



7. LathroMum ahscessum. — Two fragmentary specimens were taken by 

 Mr.'liichaMson five miles west of Green Kiver Crossing, Wyoming. 

 The head is smooth, subquadrate, broader than long, with slightly con- 

 vex sides and hind border, the eyes of medium size, obovate, a little in 

 advance of the middle of the head. The prothorax is smooth, as broad 

 as the head, shaped quite as in L. elongatum (Linn.), the sides straight, 

 the anterior angles rounded off, the whole posterior border well rounded. 

 The abdomen is also as in the species mentioned, with rounded tapering 

 tip, but the elytra are shorter, being baraly as long as the prothorax, 

 with rounded apices. 



Length of body 6.25"^", of head .90'""', of eyes .25"^"'; breadth of head 

 1.02"""; lengtb of prothorax 1.10'"", of elytra 1.05™"'; breadth of abdo- 

 men 1.2'"". 



8. Oxytelus prisiinus. — A single fairly preserved specimen, but of 

 which none of the appendages excepting the elytra are visible, was found 

 in Chagrin Yalley, White Eiver, by Professor Denton. Apart from the 

 labral prolongation, which is as in other species of Oxytelus, the head is 

 subquadrate, slightly broader than long, the eyes occupying the whole 

 lateral outline and but little convex; the sutural divisions of the under 

 surface show through upon the upper surface (whicli is exposed to view), 

 obscuring somewhat the parts above. The prothorax is somewhat in- 

 jured, but was evidently subquadrate, a little broader than the head, 

 nearly a third broader than long, the front border slightly concave, the 

 outer margin a little convex, the posterior angles and posterior border 

 exactly as in Oxytelus rugosiis (Grav.) ; the surface is delicately punctu- 

 late as in the species named, and there is a very slight, shallow, and 

 broad median longitudinal sulcation, whose walls, however, are not ele- 

 vated into ridges, as usual in the species of Oxytelus. The right elytron 

 is expanded, and is, therefore, in the most favorable position for exami- 

 nation ; it is more than half as long again as broad, the humeral angle 

 well rounded off, the outer margin very gently convex, the apex squarely 

 docked but slightly convex; the surface is covered rather profusely and 

 uniformly with shallow circular punctures resembling those of the pro- 

 thorax, and averaging about .04""" in diameter. The abdomen is much 

 as usual in Oxytelus, the sides slightly convex and the tip of the abdo- 

 men bluntly and rather regularly rounded ; it was evidently furnished 

 rather abundantly with very flue, short hairs. 



Length of body 4.2""", of "^ head .78'""'; breadth of same, S'"" ; length 

 of eyes, .51'"'" ; breadth of same, .18""" ; length of prothorax, .72'""' ; 

 breadth of same, .9""" ; length of elytra, 1.22'"" ; breadth of same, .75"" ; 

 breadth of abdomen, 1.10"'". 



9. Anthcrophagns priscus. — Several specimens, representing either the 

 ui>per or the under surface of the body, were obtained by Mr. Kichard- 



