78 MEMOIRS ON THE COLEOPTERA 



and prominent; surface with very feeble impressions and biabbre- 

 viated stria, the foveae rather small, rugose, deeply impressed and 

 sublinear, the carina obsolete; elytra one-half longer than wide, 

 two-thirds wider than the prothorax, parallel, the sides scarcely 

 arcuate, rapidly rounded at the broadly exposed humeri, broadly 

 obtusely rounded at tip; striae as in the preceding, feebly impressed, 

 distinctly but not very coarsely punctate, the foveae small, near basal 

 and apical third, the posterior fovea wanting in one specimen. 

 Length (cf 9 ) 5.6-5.8 mm.; width 2.3-2.4 mm. Pennsylvania, New 

 York and Indiana dilatatum Lee. 



61 Elytral striae feebly impressed and finely punctate, the dorsal foveae 

 well developed and broadly impressed as a rule. Body broadly 

 oblong, black throughout, with rather bright subcupreous lustre 

 above, the anterior parts somewhat less shining, the legs piceous- 

 black; head with prominent eyes, four-fifths as wide as the pro- 

 thorax but not as wide as an elytron; antennae long and slender, 

 the medial joints between three and four times as long as wide, 

 black, the basal joint rufous beneath, blackish above; prothorax 

 two-fifths to one-half wider than long, about as wide at base as at 

 apex, widest barely before the middle, the sides not narrowly but 

 very feebly reflexed, rounded submedially, straight anteriad, equally 

 oblique and very feebly sinuate posteriad, the basal angles minutely 

 prominent and acute; surface with slight wavy rugulations, the im- 

 pressions feeble, the stria fine and incomplete; foveae large, rugulose, 

 extremely shallow, the carina wanting; elytra parallel, with feebly 

 arcuate sides, more than one-half longer than wide, one-half wider 

 than the prothorax, the small punctures rather close-set, the foveae 

 near three-sevenths and three-fourths. Length (cf 9 ) 5.7-6.4 mm.; 

 width 2.25-2.35 mm. Pennsylvania (Fairview), New Jersey and 

 Wisconsin. [Bemb. antiquuni Dej.] honestum Say 



Elytral striae well impressed and conspicuously punctured, the dorsal 

 foveae notably small 62 



62 Form moderately broad, rather more convex and more polished, 

 smaller in size, black, with aeneous lustre above, the legs blackish- 

 piceous, the femora paler basally; head with unusually large prom- 

 inent eyes, five-sixths as wide as the prothorax but distinctly nar- 

 rower than an elytron, the sulci deep and parallel as in related spe- 

 cies; antennae colored as in honestum but slightly shorter and less 

 slender, the medial joints about three times as long as wide; palpi 

 similarly blackish; prothorax relatively small, two-fifths wider than 

 long, much narrower at base than at apex; sides more narrowly and 

 strongly reflexed, more evenly and strongly arcuate anteriorly, more 

 oblique basally, becoming gradually deeply sinuate just before the 

 sharply prominent angles; surface more convex, smooth, with obso- 

 lescent impressions and very fine stria, the foveae small but deep, 

 elongate and linear, the carina wanting; elytra parallel, with feebly 

 arcuate sides, one-half longer than wide and nearly three-fifths 

 wider than the prothorax, subcircularly rounded at tip; striae deep 

 at apex, the strong close-set punctures evident almost to the tip; 



