apex (judging from the striae) broken off, striae extensively confluent 

 basally (though less deep in this region) as shown in the figure, moderately 

 deep and narrow, sparsely punctate at bottom, the punctures small and 

 nearly round, interspaces broad, flat, nearly smooth except near the base 

 where they are somewhat wrinkled transversely or imbricately sculptured. 

 Under side of body punctate similarly to the prothorax except that the ab- 

 dominal sculpture is a little finer on the proximal segments and much more 

 so on the distal ones. Legs in poor condition, moderately long. Length, 

 excluding rostrum, 3,15 mm. 

 Described from one specimen. 



Eemarkable as showing the prosternal horns so characteristic 

 of male Geraeus today. In this species they are shorter than in 

 the majority of the Mexican forms figured by Mr. Champion 

 but are pretty nearly in the same stage of development as in 

 G. marginatus. I have felt obliged to separate the fossil under 

 a new generic name on account of the peculiar elytral striation 

 which I do not find paralleled in any of the Barini at my dis- 

 posal. The appearance is almost as if the elytron had been 

 turned end for end, but I cannot believe that such an accident 

 could happen without leaving evidence of dislocation. I have 

 made no account of the spur-like process on the front edge of the 

 prothorax under the eye, not knowing whether it is adventitious 

 or otherwise. It does not look like the sternal spurs. Compared 

 with Florissant fossil Barini, this would approach in size Cato- 

 oaris coenosa, which has longer legs, and Auloharis damnata 

 which has a shorter beak. Both are entirely different in elytral 

 sculpture. 



CENTEINUS HYPOGAEUS sp. nov. 

 (Plate III, fig. 13). 



Form stout, outline, in side view, oval. Head strongly, closely and fairly 

 coarsely punctate on the vertex, cheeks very finely corrugated. Beak, 

 measured from the eye, a little longer than the prothorax, gently curved, 

 finely striate, otherwise nearly smooth. Eye elliptical. Antennae too poorly 

 shown for description. Prothorax hardly arched along the back, strongly 

 tapering anteriorly, punctuation regular, somewhat coarser than on the 

 head, close and strong, each puncture roughened at bottom, possibly by 

 the presence of a scale. Elytra regularly and fairly deeply striate, the 

 striae with distinct, but not very strong, subcircular, well separated punc- 

 tures, interstitial spaces broad, flat, about twice as wide as the striae. The 

 elytra appear to have been covered with a moderately close, fine, hair-like 

 vestiture. Sterna sculptured about like the prothorax but perhaps a little 

 more coarsely, punctuation of the abdomen similar at base becoming finer 



17 



