322 CALIFORNIA ACADEMY OF SCIENCES. 



The palpi are long and slender, clear rufo-testaceous 

 throughout, the third joint of the maxillary one-half longer 

 than wide, the fourth three times as long as the third, 

 slender, slightly fusiform, obtusely acuminate at tip; first 

 joint of the labial scarcely two-thirds as long as the second, 

 third much longer than the first two together; the terminal 

 joints of all the palpi have disks at the tips, which are pale 

 and apparently spongy. 



This genus differs from Lesteva, which it should precede 

 in the catalogue, in the structure of the labial and maxillar}^ 

 palpi, and in the very long elytra, which extend for a long 

 distance behind the metasternum. 



LESTEVA Latr. 



L. truncata n.sp. — Rather broad, widest behind; body black throughout; 

 autenu;e not paler; legs black except the posterior tibiae, which are slightly 

 paler toward tip; oral organs black; integuments shining; pubescence fine, 

 rather dense, sub-recumbent, dark tulvous. Head small, as wide as long; 

 eyes nearly at the posterior angles, large, rather coarsely granulated, promi- 

 nent; base broadly and nearly squarelj- truncate along a line just behind the 

 eyes; front scarcely convex, rather coarsely, evenly and feeblj' punctate; 

 having, on a line through the anterior extremities of the eyes, two small 

 round fovere miitually one-half more distant than either from the eye, 

 feebly and arcuately impressed between the bases of the autennfe; the latter 

 two-fifths as long as the body, slender, very feebly incrassate; basal joint 

 slightly robust, more than twice as long as wide, second two-thirds as long 

 as the first and four-fifths as long as the third; joints four to ten, equal in 

 length, slightly shorter than the third, eleventh slightly shorter than the 

 two preceding together; outer joints distinctly compressed. Prothorax 

 widest at two-fifths its length from the apex, where it is two-fifths wider than 

 the head and one-third wider than long; sides evenly and moderately arcu- 

 ate, very moderately convergent and very feebly arcuate to the basal angles 

 which are obtuse and not at all rounded; apical angles more obtuse and 

 slightly rounded; base squarely and evenly truncate, nearly five-sixths as 

 wide as the disk and about equal in width to the apex; the latter squarely 

 truncate; disk ti-ansversely and rather strongly convex, even except very near 

 each side, where, throughout the basal half, there is a narrow strongly im- 

 pressed channel parallel to the edge, which terminates anteriorly at the 

 middle in alarge, round, rather broadly and deeply impressed pit; punctures 

 fine, evenly distributed and rather dense, feebly impressed. Elytra at base 

 as wide as the pronotum; sides distinctly divergent and nearly straight; 



