NORTH AMERICAN COLEOPTERA. 31 



J-emale. — Unknown. 

 Lengtli 0.9 mm. 



Washington, D, C. (Schwarz). 



The carinae of the pronotum are very strong, and will render the 

 species very easily recognizable. 



E. lucilleiltlis n. sp. — Form slender. Pubescence extremely sparse, 

 almost totally absent from the pronotum. Head and antennae nearly as in 

 carinatus; labrum very broadly trapezoidal, broadly rounded anteriorly, where 

 it is fringed with very short whitish setae, and also with very long sparse 

 hairs ; third joint of maxillary palpi longer than the first two together. 

 Prothorax wider than the head, one-fourth wider than long ; sides as in 

 carinatus; anterior margin longer and more strongly arcuate than the poste- 

 rior, which is nearly transverse ; the two carinae at the basal angles are 

 distinct, the middle one is entirely obsolete ; parallel to the basal margin 

 and at a short distance from it, is a row of six very deep distinct impressed 

 foveae ; disk of pronotum impunctate and highly polished. Elytra at the 

 base slightly wider than the pronotum ; sides rather strongly divergent 

 l^osteriorly, longer than the width at base, rather strongly and evenly 

 arcuate ; together broadly, roundly, and feebly emarginate behind ; suture 

 one-fifth longer than the pronotum ; surface moderately convex, highly 

 polished, very minutely, distinctly, and extremely distantly punctulate ; 

 sutural striae distinct and very close ; surface of abdomen extremely highly 

 polished, nearly as in the preceding species. Legs moderate ; first three 

 joints of the posterior tarsi decreasing uniformly and very gradually in 

 length, fourth as long as the two preceding together. Color throughout very 

 pale testaceous, legs paler, last two joints of antennae distinctly darker. 



Mule. — Sixth segment very broadly emarginate at apex, emargination as 

 wide as the segment, evenly rounded, and very feeble, fifteen to twenty times 

 as wide as deep ; seventh segment rather acutely rounded at- apex. 



Female. — Unknown. 



Length 1.0 mm. 



District of Columbia (Ulke). 



TYCHIJS. 



T. testaceilS n. sp. — Form somewhat slender. Pubescence coarse, erect, 

 somewhat dense and long, shorter on the head and pronotum. Color uni- 

 formly reddish-testaceous, integuments translucent. Head, from front of 

 tuberculation to base, longer than the width across the eyes ; interocular 

 surface very convex, smooth, and highly polished ; eyes very small, semi- 

 circular ; tuberculation large, median furrow very narrow; genae nearly 

 transverse behind the eyes ; antennae as long as the elytra and prothorax 

 together, first joint twice as long as the second, distinctly more robust, second 

 very slightly longer than wide, sub-cylindrical, joints three to eight sub- 

 equal, joints of club increasing uniformly in width, ninth one-third wider 

 than the eighth, ninth and tenth wider than long, eleventh nearly twice as 

 wide as the ninth, longer than the two preceding joints together, couoidal, 



