H. C. FALL. 159 



than long, not narrowed in front, sides broadly evenly arcuate, a little 

 sinuate at base and behind the front angles, which are obliquely trun- 

 cate ; ante-basal impression deep, limited each side by a short longi- 

 tudinal one; disk sparsely finely punctate at middle, broadly smooth 

 laterally, basal impression more strongly punctate at bottom. Elytra 

 oval, three-sevenths longer than wide, nearly one-half wider than the 

 prothorax, striae not impressed, consisting of elongate punctures, be- 

 coming obsolete apically except near the suture; intervals flat, im- 

 punctate, the marginal one wider. Presternum coarsely densely punc- 

 tate at middle, the propleuras smooth ; metasternum and abdomen 

 finely transversely wrinkled and finely punctate, finely pubescent. 

 Length, 3.6 mm. ; width, 1.7 mm. 



Castle Crag, Northern California. Two examples collected 

 by Dr. Fenyes. 



This fine species is larger than any previously described 

 from our fauna, and differs from all others in the uniform 

 pale reddish testaceous color. It is most nearly allied to 

 robusta, but is more elongate, with more slender antennae, 

 smoother prothorax and less -coarse elytral strial punctures. 

 The striae are inclined to be a little irregular or confused in 

 pallida ; the ninth stria is more distant from the margin than 

 from the eighth, in which respect it agrees with robusta only. 



SYSTENA Chev. 

 S. sexnotata n. sp. 



Subdepressed, broader behind, pale yellow, strongly shining, elytra 

 each with a subsutural spot near the base and two others in a trans- 

 verse line at the middle, black. Antennas slender, a little longer than 

 half the body, outer joints infuscate, third joint not quite as long as 

 the fourth. Head smooth at middle, minutely punctate toward the 

 eyes, prothorax scarcely visibly punctulate ; elytra finely, lightly, not 

 densely punctate. Body beneath less shining, sparsely punctulate and 

 sparsely pubescent. Length, 4.8-5.5 mm. ; width, 2.5-2.7 mm. 



Alpine, Texas (Wickham). 



Very distinct from any of our previously discribed species 

 by its large size, color, and posteriorly widened subdepressed 

 form. It seems closer to the Mexican variabilis than any- 

 thing else, but this last is said to have the third and fourth 

 antennal joints equal, and the elytra very closely punctate. 

 In some specimens of sexnotata the outer edge of the front 

 and middle tibiae, and the apex of the hind femora are infus- 

 cate, but no other variation is observable in the five speci- 

 mens at hand. 



TRANS. AM. ENT. SOC, XXXVI. JUNE, 1910. 



