NORTH AMERICAN C()l>EOPTKRA. 17 



While it is usually mixed with the preceding, there is no doubt 

 that this is the best detined of any of the species in our fauna. 

 Occurs in Texas. 



E. <>»iibtili!< n. .sp.— Form of LeContei. piceoiis black, sliiiiing, elytra with 

 large ir<l Initneral space e-xtending broadly and obliquely towai'd the apex. Head 

 not coarsely punctate, sjjarsoly on the vertex, densely on the front, surface ci- 

 nereo-pubesctent. Thorax slightly narrowed in front, fully as long as wide 9 or 

 less elongate % , surface relatively finely punctate on the disc and very sparsely, 

 toward the sides a little more coarsely and closely, median line smooth, surface 

 cinereo-pubescent, sparsely on the disc; scutelluni with but few punctures. Ely- 

 tra narrowed near the apex only, subhumeral lobe moderate, strife composed of 

 moderately fine, not closely placed nor deeply impressed punctures, intervals 

 flat, smooth. Body beneatii densely punctate, cinereo-pubescent. Length .15 — 

 .20 inch.; 3.75 — 5 mm. 



The female has a distinct fovea in the last ventral segment, the 

 males have a shorter and liroader thorax. The red .space surrounds 

 the humeral umbone and extends obliquely inward to the second 

 stria, thence posteriorly more than half the length of the elytra, the 

 apex rounded. 



Wiiile it resembles LeContei. in form, it differs in its le.ss punctate 

 thorax, more finely punctate elytra, and the lai-ger lunneral space. 

 From vittata, with which it has been associated as a variety, it differs 

 in its smoother elytra and much more elongate form, especially a.** 

 to the thorax. 



Occurs in the southern part of California. 



E. vittata Lee, .lourn. Acad, iv, p. 26,--Form nearly as robust as Cose, 

 dominicana, piceous black, shining; elytra with a red humeral spot (umbone 

 black) sometimes extended, forming a vitta. Head moderately closely and 

 coar.sely punctate, cinereo-pubescent, occi|)ut smoother. Thorax one-half wider 

 than long, narrowed in front, disc scarcely visibly punctate, at sides more dis- 

 tinctly, surface cinereo-pubescent. more closely at the sides; scutelluni with 

 numerous coarse punctures and pubescent. Elytra slightly narrowed posteriorly, 

 the subhunici'al lobe moderately developed, striae composed of large, deep, closely 

 placed punctures, intervals flat, smooth. Body beneath densely punctured, 

 cinereo-pubescent. Length .22 — .26 inch.; 5.5 — 6.5 mm. 



The females have a feeble fovea in the last ventral segment. 



The punctures of the strife vary somewhat, but are usually as de- 

 scribed, although one specimen nn'ght l)e called moderately finely 

 punctate. 



The humeral spot varies in extent. In the type specimen the spot 

 forms a vitta extending nearly to the apex of the elytra as in Cogc. 

 vittigern. In all the other specimens s^een the spot does not extend 

 beyond the middle of the elytra. 



TRANS. AM. KNT. .SOC. XIX. (3) KK»Kl'AKV, IS!).'. 



