406 Goleopterological Notices, VII. 



differ perceptibly, and the only way in which the sexes in this 

 part of the genus can be nQutuall3' distinguished is by an exami- 

 nation of the (Edeagus ; its acute tip in the male can generally be 

 discovered bj' careful examination under sufficient optical en- 

 largement. 



10. C. longicorne n. sp. — Moderately stout, polished, dark castaneous, 

 the elytra slightly paler and rufescent throughout ; legs and antennae dark 

 rufous ; pubescence dark, rather long, abundant and bristling anteriorly, 

 longer, abundant and fine on the elytra. Head orbicular, moderately convex, 

 subimpunctate, about as long as wide, the sides broadly parabolic behind the 

 eyes, which are moderate in size and only slightly convex ; neck a little less 

 than }4. the maximum width ; base of occiput a little less than vertical and 

 rounded in profile. Antennae very long and slender, distinctly more than 

 }4 as long as the body, the basal joint more than twice as long as wide, 

 cylindric, }4 thicker than the second, the latter 2% times as long as wide, not 

 quite as long as the next two and slightly thicker ; three to six equal in width 

 and slender, the seventh but slightly thicker, third 3^, fourth 3^, fifth %, 

 sixth *^', longer than wide ; seventh about twice as long as wide ; eighth feebly 

 obconic, fully }4 longer than wide and forming a gradual transition to the 

 outer joints, the ninth slightly longer than wide ; tenth as long as wide, both 

 feebly obtrapezoidal ; eleventh gradually pointed, but slightly thicker, % 

 longer than wide and much shorter than the two preceding, not quite twice 

 as thick as the second. Prothorax slightly longer than wide, conic, the sides 

 feebly arcuate ; apex scarcely J^ as wide as the base, which is broadly arcuate ; 

 disk evenly convex, not at all impressed, the base % wider than the head. 

 Elytra scarcely J^ longer than wide, % wider than the prothorax, widest at 

 basal %, the sides arcuate ; apex narrowly rounded ; humeral plica obviously 

 elongate and distinct ; disk impunctate, scarcely at all impressed near the 

 suture, the latter perfectly devoid of subbasal bead ; two basal fove^ dis- 

 tinct, the subhumeral impression broad and distinct. Legs rather long, 

 the femora strongly clavate, the posterior less strongly but abruptly so, with 

 the clava occupying apical half. Length 1.7-1.9 mm. ; width 0.75-0.8 mm. 



Texas (Brownsville). Mr. Wickham. 



The description applies to the two males before me, the single 

 example which may be supposed to be the female being smaller, 

 paler and more rufous in color, with the antennae very slightly 

 shorter and just visibly more strongly, but quite as gradually, in- 

 crassate toward tip. The abdomen is dark testaceous in nearly 

 apical half, and is rather thickl3' pubescent. 



11. C. riltorum n. sp. — Eather stout, polished and impunctate, pale 

 rufous throughout ; legs, antennae and anterior parts scarcely darker than the 

 elytra ; abdomen pale, darker toward base ; pubescence long and abundant, 

 fine on the elytra but mingled with the usual stiff bristles anteriorly and pale 



