COLEOPTERA OF BAJA CALIFORNIA. 385 



each side of the middle in front and also at base. Ely- 

 tra densely finely punctiilate, the pubescence forming a 

 larp'er triano-ular area beginning at the humerus extend- 



O & too 



ing beyond the middle, the apex reaching the suture one- 

 third from base, the scutellar area spotted with white, the 

 apical third irregularly marmorate, the space at middle 

 third almost nude. Body beneath black, densel}-" punc- 

 tulate and cinereo-pubescent. Length, .25 inch; 6.25 

 mm. 



One specimen collected in western Nevada by Mor- 

 rison; others by Schwarz at Brightons, Utah. 



A prettily ornamented species and easily known there- 

 by. Its most striking peculiarity is in the form of the 

 antennae. The normal form of antennae in Xestobium is 

 to have the last three joints triangular and larger than 

 those which precede, the funicular joints slender. In the 

 present species there are properly but three funicular 

 joints, the third joint of the antennee longer than the sec- 

 ond or fourth, fourth shorter than second, fifth twice as 

 long, narrowly triangular, sixth short, triangular, seventh 

 similar to the fifth, eighth similar to the sixth, ninth and 

 tenth like the seventh, eleventh a little longer. When 

 the genera of Anobiini have been released from the con- 

 fusion in which they appear to be at the present time this 

 species may be separated from Xestobium, or, as the ge- 

 nus will then be called, Anobium. 



Ctenobium cinereum n. sp. 



Cylindrical, slightly depressed, piceous black, clothed 

 with fine ashy pubescence nearly concealing the surface 

 color. Head opaque rather coarsely punctured. Tho- 

 rax one-third broader than long, sides arcuate, angles all 

 rounded, disc convex with scarcely any irregularity, a 

 faintly impressed median line, surface finely densely 



