AMERICAN COLEOPTERA. 29 



species, the widely obliterated clypeal suture and smooth 

 median line of metathorax and abdomen. Although strongly 

 shining the elytra show the minute alutaceous sculpture; this 

 is not detectable on the thorax except very faintly toward the 

 side margins. 



11. D. muricata Schf. 



Oblong, not or but slightly wider posteriorly; black, rarely brown, 

 surface finely alutaceous, lustre dull; sparsely hairy, the hairs or seta? 

 very short, pale, inclined and more or less recurved, not longer than 

 one-fourth the scutellar width on the elytra, and shorter still on the 

 prothorax. Mentum with raised line and setae fairly distinct, labrum 

 rather strongly arcuately emarginate. Head densely rather coarsely 

 cribrate punctate, front and clypeus in same plane when viewed in 

 profile, the clypeal suture rather feebly impressed but distinct; mar- 

 gin narrowly reflexed, arcuato-truncate at middle, rarely with short 

 barely perceptible sinuation. Prothorax two-thirds wider than long, 

 widest at middle, sides strongly nearly evenly arcuate, base not much 

 wider than apex, angles as viewed from above obtuse but well defined; 

 disk coarsely closely punctate, very densely so at sides. Elytra one- 

 fourth longer than wide, about one-seventh wider and two and one- 

 half times as long as the prothorax; costae very indistinct, punctuation 

 coarse, close, and somewhat muricate, confused in first intercostal 

 space. Beneath still more coarsely punctate though less densely so, 

 especially the basal parts of each segment except the last. Legs short, 

 tarsi stouter than usual, basal joint of hind tarsus as wide as long. 

 Upper tooth of front tibia median in position. Ungual tooth a little 

 post- median. Length 7J-9 mm ; width 4.3-5 mm. 



This species was taken in some numbers by Mr. Wickham 

 at Alpine, Marfa and Big Springs, Texas, in July and August. 



12. D. hispida n. sp. 



Oblong, not or scarcely wider posteriorly, brown to piceous, surface 

 finely alutaceous and sparsely hairy, the hairs semi-erect and not 

 longer than one-fourth the scutellar width. Mentum declivous in 

 front, broadly concave posteriorly, the transverse row of setae at the 

 anterior third. Head densely moderately (joarsely punctate, clypeal 

 suture distinct posteriorly arcuate at middle, clypeal margin rotundate, 

 normally subtruncate at middle. Prothora:/ three-fourths wider than 

 long, widest at middle, sides moderately rounded, more strongly con- 

 vergent in front; angles well defined, a llittle obtuse; punctuation 

 moderately coarse, the punctures separated i ;it middle by one-half to 

 three-fourths their own diameters, closer at sides. Elytra about two 

 and two- thirds times as long as the prothorax and nearly two-fifths 



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



