554 Coleopterological Notices, VI. 



rugosel}' puncturecl. Legs moderate in length and decidedl3'' 

 slender. Length 2.1 mm.; width 0.75 mm. 



California (San Diego). I have onl}- seen the female of this 

 species, which is one of the smallest and most isolated of the 

 genus; it evidentl3' belongs to the senilis group, however, because 

 of the uniforml}' distributed pubescence and three-jointed anten- 

 nal club, but differs completely in the sculpture of the head and 

 pronotum. 



16. I., exti'icatus n. sp.— Elongate, parallel, moderately convex, pol- 

 ished, black with a reddish or cupreous lustre; legs black, the tibiai and tarsi 

 pale ruf o-testaceous ; antenna; piceous, the basal joint black, the second testa- 

 ceous; pubescence rather long, moderately coarse, close and semi-erect, cine- 

 reous, with confused denuded spots and lines on the el^'tra, a fine and strongly 

 bizigzag band behind the middle and a broader and more even non-interrupted 

 straight fascia at apical fourth being especially noticeable. Head two-thirds as 

 wide as the pi'othorax, the eyes moderate in size, somewhat prominent and 

 distant from the base; surface densely and deeply punctato-rugose and dull, 

 the anterior impressions broad and feeble; epistoma with a wide coriaceous 

 apical margin; antenniie distinctly longer than the prothorax, the tenth joint 

 but slightly wider than long. Prothorax transverse, fully one-half wider than 

 long; sides strongly convergent and l)roadly arcuate from near the base to the 

 broadly obtuse apical angles ; apex feebly arcuate, more strongly- so and nar- 

 rower than the projecting base; disk deeply and densely punctato-rugose, more 

 coarsely and densely so toward the sides. Elytra long and parallel, fully three- 

 fourths longer than wide, only slightly wider than the prothorax, broadly and 

 very obtusely rounded in apical fourth ; base transversely truncate, the humeri 

 right and narrowly rounded; punctures rather coarse, deep, moderately close- 

 set, the intei'spaces convex and highlj' polished. Legr.s rather long, the hind 

 tarsi slender. Length 2.8-3.0 mm.; width 1.0-1.15 mm. 



California (San Diego). Mr. Dunn. 



The male, serving as the tj-pe of the above description, has the 

 fifth ventral along the median line very short, not longer than the 

 fourth, the apex broadly but distinctl}' sinuate and the disk flat 

 and entirely unmodified, the pubescence decumbent, ashy and 

 normal ; behind the fifth ventral, the horizontal under part of the 

 dorsal pygidium is flattened, transversely oval and densely 

 clothed with erect blackish hairs. I cannot perceive the true 

 genital segment in any of the four specimens before me. 



Two examples from Utah represent a feeble geographical va- 

 riety', agreeing throughout except that the size is a trifle larger 

 and the pronotal sculpture much smoother toward the middle. 



