188 GEO. 11. HORN, M. B. 



clypeal margin narrowly reflexed. Thorax rather coarsely but not densely 

 punctured, median line very feebly impressed, surface sparsely pubescent and 

 similar in the sexes, sub-apical and basal marginal lines deeply impressed. 

 Elytra rather coar.sely punctured and wrinkled, very sparsely pubescent. Body 

 beneath sparsely punctured and pubescent. Legs testaceous. 



This species differs from the preceeiiug in having the tliorax less 

 densely and more coarsely punctured, and similarly pubescent in the 

 two sexes, the hind tibiae entirely testaceous, and finally by the tri- 

 fling character of the darker spots at the humeral and apical uujbones. 

 It is also somewhat larger. 



Occurs in Canada. 



I>. caimdoiiNis, n. sp. — Piceo-testaceous, elytra greenish bronze with 

 margin paler. Head densely and rather coarsely punctured, sparsely pubes- 

 cent, frontal suture nearly invisible, very strongly arcuate at middle, clypeus 

 with rounded angles, margin deeply reflexed. Thorax sparsely punctured, a 

 slight impression near the middle of the side, sub-apical and basal marginal 

 lines distinct. Elytra coarsely punctured, picco-testaceous, surface uniformly 

 and rather brightly seneous. Legs entirely testaceous. Anterior tibiie with 

 the upper tooth obsolete. Body beneath sparsely punctured, and sparsely and 

 finely pubescent. Length ..36 inch; 9 mm. 



This Species resembles elongata, but the clypeus has a much more 

 broadly reflexed margin, the thorax less punctured, the hind tibiic 

 entirely testaceous, and the anterior tibia) bidentate only. 



Occurs in Canada. 



I>. testacoa, Kby. — Pale testaceous, elytra with very faint tinge of reneous. 

 Head coarsely and densely punctured, with very few hairs. Clypeus with 

 rounded angles, margin rather broadly reflexed, frontal suture distinct but 

 not impressed. Thorax sparsely punctured, sparsely pubescent, bind angles 

 distinct but not prominent, anterior sub-apical and basal marginal lines feeble. 

 Elytra coarsely punctured, sparsely pubescent. Body beneath sparsely punc- 

 tured and pubescent. Legs testaceous. 



This species might be mistaken for a pale eloiigata, but the thorax 

 is much less densely punctured, and the hind angles of the % thorax 

 less prominent. The punctures of the thorax are finer than in i^iih- 

 vitlata, and there is no trace of the median Hue as in the latter species. 

 The clypeus is rather more widely reflexed than in cither of the two 

 mentioned, though less so than in canadensis, from which it also difl'ers 

 in the tridentate anterior tibiae. 



Occurs in Canada and Vermont. 



D. palleiiM, Lee. — Pale testaceous above and beneath, elytra with very 

 faint tinge of aeneous. Head very densely and coarsely punctured, very 

 si)ar3ely pubescent, frontal suture obsolete. Clypeus with rounded angles, 

 margin very feebly reflexed. Tliorax rather coarsely punctured, punctures at 

 the sides denser and sub-confluent, sides behind the middle obli<iue, angles 

 obtuse, surface sparsely pubescent. Elytra coarsely but sparsely punctured, 



