194 GEO. H. HORN, M. D. 



It is reiimrkat)le that this species should have been made a syiionyin 

 of quercata after the good descri])tion and figure by Olivier. The 

 brown color on the elytra extends along the base between the urn- 

 bones on each of which it forms a slight hook. The lower edge 

 curves inward and downward along the suture, at the middle of the 

 suture it is angulate, opposite which is a round spot, extending to 

 three-fourths the band terminates abruptly with an angulation op- 

 posite which is another spot. Either one or both of the s])ots may 

 be wanting. 



Occurs in Georgia and Florida. 



25. CE. quercata. Fab. — Oval, depressed, piceous, thorax entirely or witli 

 the sides pale, elytra with pale tiorder, surface moderately shiuino;. Antemue 

 slender, longer than half the body, pale yellowish, the outer joints often darker, 

 third joint slightly shorter than the fourth Head piceous, front paler, a very 

 few indistinct punctures posteriorly, intf'rocular depression deep, frontal carina 

 obtuse, tubercles not distinctly separated. Thorax more than twice as wide as 

 long, arcuately narrower to apex, margin widely explanate. disc finely aiutaceous, 

 obsoletely, finely, sparsely punctate, anterior angles dentiform, color often en- 

 tirely yellow {quercata). sometimes piceous with the border yellow (ohsidiana). 

 Elytra not wider at base than the thorax, humeri rounded, umbone distinct, 

 within sulcate, margin explanate, disc distinctly punctate, smoother near apex, 

 color piceous, the entire margin pale, narrower along the sides, wider at apex. 

 Epipleurte broad, pale. Body beneath and posterior legs piceo-rufous, front and 

 middle legs pale. Abdomen shining, sparsely, indistinctly punctate. Length 

 .14— .15 inch ; 3.5—4 mm. Plate VI, figs. 1-2-4. 



In addition to the tw'o varieties above indicated, a specimen (PI. 

 VI, fig. 4) from Illinois varies in a ]ieculiar way. The elytra are 

 dark brown, the entire limb as usual pale and with a transversely 

 oval spot at basal third, another behind the middle, these broadly 

 united along the suture. No other differences can be detected, and 

 I therefore consider it merely a variation. 



Widely distributed in the entire eastern United States. 



26. <E. scalaris Mels. — Oval, slightly oblong, depressed, shining. Antennse 

 slender, half as long as the body, piceous, basal joints paler, third and fourth 

 equal. Head in great part pale, piceous along the middle, very indistinctly 

 punctate, interocular depression deep, frontal carina obtuse, tubercles distinct. 

 Thorax more than twice as wide as long, arcuately narrowed to the front, margin 

 widely explanate, anterior angles dentiform, surface aiutaceous, very sparsely 

 and finely punctate, color yellow, with a brownish spot on each side, sometimes 

 formiug a large discal space. Elytra not wider at base than the thorax, humeri 

 rounded, umbone distinct, limited within by a distinct sulcus, margin nioderatcly 

 explanate, surface rather coarsely punctate near the base, smoother at tip. gen- 

 eral color yellow, a broad basal black fascia of irregular form enclosing a pale 



