FOSSIL COLEOPTERA J]^ 



OxYTELUs Grav. 



O. SUBAPTERUS n. sp. (Plate III, Figs. 4, 5.) Form more elongate than 

 in most of the recent species. Head finely punctured, large, not wider than 

 the prothorax but considerably longer, eyes small, moderately prominent, 

 posterior in position, mandibles projecting and prominent. Antennje, if 

 directed backwards, reaching almost to the prothoracic hind angles, not 

 geniculate, feebly incrassate to apex, first joint large, second small, third 

 longer than the fourth. Prothorax strongly narrowed posteriorly, about one 

 and two-fifths times broader than long, widest near the apex, sides regularly 

 and feebly arcuate, apex a little advanced at middle, base approximately 

 straight, surface sculpture similar to that of the head but a little coai'ser, 

 apparently faintly grooved on each side of the middle. Elytra narrowed at 

 base, wider behind, apices separately somewhat rounded, sculpture scarcely 

 visible excepting a line at about the external fourth, which may represent 

 the former line of flexure on the flanks. Abdomen a little longer than the 

 remainder of the body, sides imperfect. Legs short and slender, the tibias 

 simple, showing no spines nor processes. Length over all, 7.95 mm. 



Except in the tibial structure, this seems a good Oxytelus. 

 The spines, of course, may have been lost, but their absence and 

 the Avant of any modification in the shape of the front pair leads 

 me to think that eventually it may be necessary to separate the 

 fossil as the type of a new genus. The size is greater than that 

 of any of our recent North American species, but not excessively 

 so when allowance has been made for probable abnormal elonga- 

 tion of the abdomen by maceration. The name refers to the 

 assumed reduction of the hind wings, as indicated by the nar- 

 rowed humeri. 



HoMALiuM Grav. 



H. ANTIQITORUM n. sp. (Plate V, Fig. 2.) Form elongate. Head strongly 

 exserted, probably unnaturally so, the surface finely sculptured, eye nearly 

 circular. Prothorax wider than the head, apparently not much narrowed 

 posteriorly, the surface minutely roughened like the head. Elytra showing 

 only along one side, where two rows of small rounded punctures are visible, 

 the interstitial areas alutaceous. Sclerites of the meso- and metathoracic 

 underside irregularly and (for so small an insect) not very finely punctate, 

 abdominal sculpture apparently only an alutaceous roughening. Hind leg, 

 the only one showing, rather short. Length, from front of head to abdom- 

 inal apex, very nearly 2.00 mm. 



One specimen, lying partly upon the side, so as to expose most 

 of the under surface. The generic assignment is made in the 

 wide sense. The form, sculpture, and such structural characters 



