AMERICAN COLEOPTERA. 109 



Occurs in Louisiana and Texas. One specimen from tlie latter re- 

 gion has the striae less deep and the surface of body with scarcely any 

 metallic tinije. 



The species of the sub-genus Crossocrrpis resemble more nearly the 

 true Oodes. 

 0. texanus, Lee. New Species, p. 13. 



Kesembles the preceding species, but is more eL)ngate. Elytra 

 with six distinct striae, punctured in their entire length, seventh stria 

 replaced by distant indistinct punctures. The characters are other- 

 wise as in the i)receding species. Length .45 inch; 1L5 mm. 



Occurs in Texas. 



EVOLENES. Lee. 



This genus is closely allied Oud.x, but differs in the shorter and 

 stouter antennae. The mandibles above are longitudinally excavated 

 near the tip, and with an acute carina on the upper edge, extendino- 

 from the tip backwards, as described by Chaudoir, in the genus. 

 If'iploloui^. The ligula is rounded and slightly broader at tip and 

 carinate along its middle. The males have the anterior tarsi as in 

 Owfe, the first joint being pedunculate. 



Two species aic kiiown. 



B. impressa, Loc. Traus. Am. ThiL Soc. 1853, 392.— Elliptical, black, shin- 

 ing, thorax piceo-rufous. Head smooth. Thorax with rounded sides, gradu- 

 ally broader behind, basal angles rectangular, median groove distinct, and on 

 each side a lateral, broad, shallow groove extending from within a pointslightly 

 in front of the middle, inwards and backwards to the middle of the base of each 

 elytron. Elytra as broad at base as thorax, very faintly striate, strise with 

 fine punctures extending their entire length, the si.xth and seventh less dis- 

 tinct : intervals flat and without dorsal punctures. Meso- and metasternum 

 coarsely punctured, sides of abdomen wrinkled and more finely punctured. 

 Body beneath black, legs pieeous. Length .31 inchj 8 mm. 

 A single specimen from New Orleaos. 



E. exarala, Dej. {Oodea) Spec, v, 678; Lee. {Hvohrtes) Trans. Am. Phil. Soc. 

 1353,392. — Elongate-elliptical, piceo-rufous, shining. Thorax similar in form 

 to the preceding, and with distinct median line only. Elytra rather deeply 

 striate, strire crenately jiunctured, the seventh as distinct as the others. Inter- 

 vals of disc nearl}' flat, those of the sides more convex, with no dorsal punc- 

 tures. Color beneath as above, sides of meso- and metasterna and abdomen 

 Coarsely punctured. Length .23 inch j inin, 



From Georgia and Alabama. Has the appearance of Amara mus- 

 culis. Say, at first %ight. 



TUAXS. AMER. E.VT, SOC. (15) SEPTEMBER, 1S70. 



