AMERICAN COLEOPTERA. 87 



gin truncato-emarginate at middle, the limiting angles rather prom- 

 inent and sharply defined but not dentiform; usually without or with 

 but slight external sinuation. Head closely punctate, clypeal suture 

 nearly straight, moderately impressed; front flat or with a broad feeble 

 concavity at middle just behind the suture. Prothorax three-fifths 

 wider than long, sides strongly rounded at or just behind the middle, 

 nearly straight before and behind, the base a little wider than the apex, 

 the apical margin more obviously angulate at middle than usual; hind 

 angles obtuse but fairly well defined; punctuation rather fine and mod- 

 erately close, the punctures separated by one-half to one and one-half 

 their own diameters. Elytra not quite three times as long as wide, a 

 little wider behind, costa? not very distinct, the broader intervals with 

 irregular punctuation which is, however, only narrowly so on the two 

 outer ones. Body beneath finely punctured, sparsely at middle, not 

 very closely at sides. Upper tooth of front tibia; a little beyond the 

 middle; ungual tooth subapical, obliquely truncate, not much wider 

 than the upper part of the claw, its tip barely twice as far from the 

 base as from the apex of the claw. Length 6.5-7.8 mm.; width 

 3.3-3.9 mm. 



This species has been taken in southeast Arizona at Nogales, 

 and in the Santa Rita, Huachuca and Chiricahua Mountains 

 by Hubbard and Schwarz, Snow, Wickham, Beyer and 

 Schaeffer. It has been taken in the Chiricahuas at an eleva- 

 tion of 5,000 feet during July of the present summer (1908), 

 by my friend Mr. Victor L. Clemence of Pasadena, California, 

 to whom I am indebted for many other good things from the 

 same locality. 



90. D. levicosta n. sp. 



Oblong-oval, scarcely wider behind, elytra minutely alutaceous, the 

 prothorax barely visibly so. Mental declivity beginning at about the 

 anterior two-fifths, distinctly margined. Clypeus rather strongly 

 emarginate at middle, the limiting angles prominent but not acute, 

 and with a distinct external sinus. Head closely or densely moderately 

 coarsely punctate, clypeal suture fine, obliterated at middle in one 

 example. Prothorax four-fifths wider than long, sides moderately 

 rounded at basal two-fifths, nearly straight anteriorly, the anterior 

 angles a little produced, base angles obtuse; punctuation fine and 

 rather sparse. Elytra three times as long as the prothorax, costae 

 moderately defined, rather narrow, impunctate or virtually so except 

 toward the apex; punctuation confused on the first two intercostal 

 spaces, of which the first is nearly double the width of the second; 

 irregular only toward the base in the third. Body beneath very 



TRANS. AM. ENT. SOC, XXXV. MARCH, 1909. 



