434 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 



Described from one specimen. 



Type. No. 2,455 M. C. Z. Florissant, Col. (No. 7,305 S. H. Scud- 

 der Coll.). 



Probably not a true Corticaria, but having the form of that genus 

 it will be sought for in this place. There is no evidence of hairs, even 

 under high power. The large size will separate it from similar 

 Florissant species. 



BYRRHIDAE. 

 NOSOTETOCUS VESPERTINUS Scudder. 



One specimen, with counterpart, No. 2,456, 2,457 M C Z (No 

 8,196 and 9,054 S. H. Scudder Coll.). 



NOSOTETOCUS DEBILIS Scudder. 



Two specimens, No. 2,458, 2,459 M. C. Z. (No. 7,687, 11,246 S. H. 

 ocudder Coll.). 



BYRRHUS ROMINGERI Scudder. 

 One specimen, No. 2,460 M. C. Z. (No. 6,389 S. H. Scudder Coll.). 



CHELONARIUM MONTANUM, sp. nov. 

 Plate 2, fig. 5. 



terlT ghly . ellipticaL Head Projecting slightly beyond the an- 



^^SA^^^^^ b charact h ers h of interest 



middle and sinuate laterally, apex rounded, sideTstmngly convergent 



Described from one specimen. 



der Coll.). ' ' ' " ^975 S. H. Scud- 



This beetle has something the aspect of a Brachys, but the thoracic 



