AMERICAN COLEOPTERA. 299 



paler Body beneath paler than above, rather sparsely and finely punc- 

 tate. Intercoxal process moderately broad, obtuse at tip. Length .10 mch; 

 2.5 mm. 



The tibise of the male are all simple as in the female, the posterior 

 femora are however obtusely subangulate near the tip. 



In form this species resembles helvola, and is equally widely 



margined. 



Occurs in Michigan, (Schwarz), also in Maryland. 



E wstiTa Linn.-Oval, slightly oblong, rufo-testaceous, moderately shin- 

 ing 'sparsely pubescent. Head densely punctate. Antennae as in monogavm, 

 pale rufous. Thorax nearly twice as wide as long, apex very feebly emar- 

 ginate and narrower than the base which is very feebly sinuate on each side, 

 sides moderately arcuate, hind angles obtusely rectangular, margin narrowly 

 explanate and slightly reflexed, disc moderately convex and with a slight 

 depression near the hind angles, surface moderately densely punctured. 

 Elytra one-fourth longer than wide, sides slightly arcuate and gradually 

 narrowed to apices which are separately rounded, margin narrowly reflexed, 

 disc moderately convex, a little less densely punctured than the thorax. 

 Body beneath rather densely punctured, more coarsely than the upper sur- 

 face. Intercoxal process acutely oval in front. Length .12—14 inch; 3- 

 3.5 mm. 



The tibise are simple and similar in the two sexes. 

 The terminal joint of the antennal club is somewhat quadrangular 

 and nearly equal in size to the two preceding joints together, and in 

 the female rather larger than the male. This will distinguish this 

 species from any other in our fauna. 

 Occurs in Alaska. 



E lal>ilis Erichs.— Oval, rufo-testaceous, moderately shining, sparsely 

 pube'scent Head moderately densely and coarsely punctured. Antennae pale, 

 formed as in vionogama. Thorax twice as wide as long, apex narrower than 

 base and feebly emarginate, sides regularly arcuate and gradually narrowing 

 from base to apex, margin narrowly reflexed, hind angles rectangular, surface 

 rather coarsely and moderately densely punctured. Elytra one-third longer 

 than wide, sides feebly arcuate and slightly narrowing posteriorly, apex trun- 

 cate margin narrowly reflexed, surface punctured similarly to the thorax. 

 Body beneath moderately densely punctulate. Intercoxal process triangular 

 acute. Length .08-.10 inch ; 2—2.5 mm. 



The tibise are simple and similar in the two sexes. 

 xVlthough always smaller this species resembles two already de- 

 scribed, ErkUonii and fulvescens, and excepting size I know of 

 no meJns of distinguishing with certainty the females. The male 

 characters are however quite distinct as will be seen by reference 

 to these species. 



Occurs from Michigan to Georgia, and is rather common. 



