Coleoptei'ological Notices, V. 285 



scarcely blunt ; base broadly arcuate, slightly wider than the truncate apex ; 

 disk very obsoletely impressed along the median line throughout. Elytra 

 strongly transverse, at base subequal to the prothorax, but, at apex, quite 

 distinctly wider ; sides feebly divergent from the base, broadly arcuate ; disk 

 externally scarcely as long as the prothorax, the suture much shorter than 

 the median line of the latter, broadly, feebly depressed toward the suture ; 

 humeri broadly rounded to the base of the prothorax. Abdomen one-half 

 longer than the anterior parts, about equal in width to the elytra; sides 

 parallel, feebly convergent toward apex ; first two tergites strongly, widely 

 impressed at base, the third very feebly so; fifth just visibly longer than the 

 fourth. Basal joint of the hind tarsi one-third longer than the second ; two 

 to four exactly equal ; fifth a little longer than the preceding two together. 

 Length 4.0-5.0 mm. ; width 0.85-1.25 mm. 



Arizona (Benson). 



The male above described, has six small slender teeth along the 

 apex of the sixth tergite, but instead of being disposed in two sets 

 of three, with a wider interval in the middle as in the other species, 

 they are here equidistant. The coloration seems to be constant, and 

 the largest and smallest specimens in my series are both females. 

 The rufous cloud on each elytron is extremely feeble. 



BARYODMA Thoms. 



B. SCIllptiTentris n. sp. — Rather narrow, parallel, convex, black, a 

 narrow apical margin of the elytra almost imperceptibly rufescent ; legs 

 scarcely paler, the tibise and tarsi dark piceo-rufous ; basal joint of the 

 antennae piceous ; integuments moderately shining, the abdomen polished ; 

 head coarsely and rather closely punctate, the pronotum very finely but 

 deeply, extremely densely and evenly so ; elytra more distinctly but still 

 rather finely, very densely and subasperately so ; abdomen very coarsely 

 deeply and densely punctured, the coarse punctures of the basal depressions 

 longitudinally coalescent, forming fine strong ridges ; pubescence of the pro- 

 notum and elytra fine, subrecumbent, very dense and distinct, of the abdomen 

 longer but fine, sparse and very inconspicuous. Head orbicular, as long as 

 wide, three-fifths as wide as the prothorax ; antennae feebly incrassate, slightly 

 longer than the head and prothorax, third joint obconical, elongate, two and 

 one-half times as long as wide and much longer than the second, tenth scarcely 

 one-half wider than long. Prothorax broadly ovoidal, one-half wider than 

 long ; sides broadly, strongly arcuate, becoming distinctly convergent in apical 

 half; base broadly, strongly arcuate, much wider than the apex which is 

 feebly arcuate ; basal angles obtuse and blunt ; disk broadly, evenly convex, 

 without trace of impression. Elytra distinctly transverse, slightly wider than 

 the prothorax and about as long as the latter ; sides subparallel and broadly 

 arcuate ; humeri not distinct. Abdomen much longer than the anterior parts, 

 very slightly narrower than the elytra ; sides parallel and straight ; first three 



