1873.] OVA. [Horn 



subhumeral stria moderately impressed, inferior to the margin and 

 slightly arcuate at basal end, epipleune unistriate, sparsely punctured. 

 Propygidium and pygidium finely rugulose and coarsely, but sparsely 

 punctured. Length .08 inch ; 2 mm. 

 One specimen. North Carolina. 



E. puliearius, Er. Jahr., 1834, p. 163 ; Mars. Mon., 1854, p. 705, pi. 

 10, fig. 25 ; minor, Lee. Bost. Journ. V., p. 73, pi. 4, fig. 6. 



Oval, moderately convex, piceous black, shining. Thorax sparsely 

 punctured. Elytrte with six entire striae, subhumeral slightly inferior, 

 epipleurae finely unistriate, sparsely punctured. Pygidium minutely 

 punctured, punctures at base coarsei", propygidium sparsely and more 

 coarsely punctured Length .0G-.08 inch ; 1.5-2 mm. 



Occurs in Florida, Georgia and Texas. 



E. ellipticus, Lee. Proc. Acad., 1859, p. 313. 



This species differs from 'puliearius, by its broader and more depressed 

 form. The subhumeral stria is marginal and straight, and not sinuous 

 and inferior as in the preceding species. Length .10-. 12 inch ; 2.5-3 mm. 



Occurs in the Southern States. 



E. planulus, Er. Jahr., 1854, p. 162 ; Mars. Mon., 1854, p. 702, pi. 

 10, fig. 22 ; decipiens, Lee. Ann. Lye. V., p. 164. 



Oblong oval, moderately depressed. Elytra with four entire dorsal 

 strife, fifth extending three-fourths to base, sutural extending slightly in 

 front of middle, subhumeral inferior, slightly sinuous, epipleurae uni- 

 . striate sparsely punctured. Pygidium and propygidium sparsely punc- 

 tured. Length .10 inch ; 2.5 mm. 



Occurs near Fort Yuma, California. 



E. nasutus, n. sp. 



Almost precisely identical with planulus, and differing only in having 

 a dentiform process from the clypeus at its middle slightly behind the 

 anterior margin. Length .08-. 10 inch ; 2-2.5 mm. 



Occurs at Fort Yuma, and in Arizona, under Cottonwood bark. 



Four specimens precisely identical, otherwise this character might be 

 considered an accidental deformity. 



Tkibalus, Erichs. 



Antenute inserted under the margin of the front, club rounded, feebly 

 truncate at tij). Antennal cavity at the anterior angle of the thorax 

 between the dorsal and pectoral plates, open in front and laterally. 

 Two species occur in our fauna. 



PygidiiVm oblique, elytra obsoletely striate americanus. 



Pygitlium inflexed, elytra with outer striae of the elytra 



replaced by fine raised lines californicus. 



T. americanus, Lee. Bost. Journ. V., p. 64, pi. 4. fig. 7 ; Mars. Mon., 

 1855, p. 159, pi. 9, No. 31, tig. 5. 



