NORTH AMERICAN COLEOPTERA. 45 



base two vague impressions, surface very densely suhrugosely punctate ; elytra 

 distinctly striate, the intervals flat, densely subrugosely punctate ; presternum 

 opaque, very densely punctate, propleurse more coarsely, less densely punctate, 

 more shining ; metasteruuni and abdomen more densely and less coarsely punc- 

 tured than the propleurte ; legs ferruginous, femora darker. Length .18 -.22 

 inch; 4.5-5.5 mm. 



In addition to the cliaracters of the table this species is distin- 

 *iuished from terminaUs by the distinct median impressed line of the 

 thorax. 



Occurs in Canada, Pennsylvania and Missouri. 



H. terniinalis Lee. — Form moderately elongate, slightly narrower behind, 

 piceous black, subopaque, sparsely clothed with cinereous yellow pubescence ; 

 antennte ferruginous, nearly as long as half the body, joints two and four nearly 

 equal, third a little longer, joints four to ten very gradually longer and broader, 

 the eleventh equal to ( 9 ) or longer than the two preceding ( o ) ; head convex, 

 densely rugosely punctate, front finely carinate, the carina extending nearly to 

 the occiput ; clypeus rather flat, narrower at base than the distance to the eyes ; 

 thorax wider than long, gradually narrower in front, sides nearly straight, 

 slightly arcuate near the front angles, disc moderately convex, densely subru- 

 gosely punctate, median line feebly impressed at base, a slight rounded impres- 

 sion on each side of the middle ; elytra striate, the intervals very slightly con- 

 vex and densely rugosely punctate ; prothorax beneath opaque, the sides more 

 coarsely punctate ; metasternum and abdomen rather densely finely punctate; 

 legs brownish, femora darker. Length .16 inch ; 4 mm. 



This species is usually smaller than the preceding and resembles 

 it closely in facies. Specimens have been reared from small branches 

 of Hickory. 



Occurs in Canada. 



S€HIZOPHIL,i;S Bonv. 



Form oblong, subdepressed, slightly narrower posteriorly ; antennas much 

 shorter than half the body, the outer joints subserrate, first joint stout, second 

 one-third as long, third one-half longer than the second and nearly equal to the 

 next two, joints four to ten very gradually longer and broader, eleventh one-half 

 longer than the tenth, acute at tip ; head deeply inserted, but prominent in front ; 

 clypeus broad at base, deeply obliquely impressed each side, truncate at middle, 

 deeply sinuate each side so as to appear trilobed ; prothorax narrower in front, 

 lateral margin entire, prosternal sutures straight well marked, slightly excavated 

 in front as in Elater, prosternum slightly lobed in front, sinuate each side near 

 the suture ; metasternal episterna parallel, the epimera invisible ; hind coxal 

 plates broad, triangular ; legs moderate, tarsi slender, the fourth joint obliquely 

 truncate, the first joint of the posterior pair as long as the next three; claws 

 slender, slightly broader at base. 



This genus is easily known from any other in our fauna by the 

 form of the clypeus. But one species is known. 



