486 Coleopterological Notices, V. 



Fifth and sixth anteniial joints almost exactly equal, distinctly stouter than 

 the fourth, three-fourths longer than wide, feehly rounded internally, 

 straighter externally; body larger and much stouter.. ..complectens 



Fifth and sixth joints cylindrical, not much thicker but very much longer 

 than the fourth ; fifth shorter than the sixth, the former less, the latter 

 more than twice as long as wide tlimida 



Fifth antennal joint alone modified, slightly thirker, more arcuate internally 

 toward apex, nearly twice as long as wide, as long as the two preceding 

 together and two-thirds longer than the sixth ; first joint much longer 

 and thicker than the second, densely punctate and with long pubescence ; 

 eyes moderate ; frontal fovea less apical, much nearer each of the vertexal 

 fovese than the transverse distance separating the latter, the triangle 

 much wider than long liVickliailli 



Fifth joint alone modified but in relative length only, twice as long as wide 

 and not quite as long as the two preceding together ; first joint not longer 

 or wider than the second, sparsely punctulate and sparsely pubescent like 

 the following ; eyes much larger, twice as long as the tempora ; fovese of 

 the head forming an equilateral triangle, the frontal much more apical, 

 on the declivity and as distant from each of the vertexal as the latter are 

 from each other; length 1.25 mm., width 0.6. Yuma, California. 



sulitilis 



In suhtilis, which is represented by the unique female type only, 

 the circular spongiose frontal fovea is not at all smaller than the 

 others, but if anything a little larger ; it is however unusually 

 apical, being situated on the anterior declivity and so may appear 

 very slightly smaller or, more properly, elliptical, from a vertical 

 point of view ; in a posteriorly oblique line of sight it may of course 

 soon be made to vanish. Suhtilis may be very readily separated 

 from wickhami by the larger eyes, position of the frontal fovea, 

 and much smaller basal joint of the antennae. 



In all of these species the color is pale rufo-ferruginous through- 

 out, the surface very convex, the elytra long and ample, the basal 

 carinas of the abdomen short, subparallel and separated by one- 

 third of the total width, except in tumida, where they are sensibly 

 more distant. In tumida the head of the male is very remarkable, 

 the upper surface being nearly flat with two large distant foveas at 

 basal third, produced anteriorly beyond the antennas in a short 

 trapezoid, the apex abruptly transversely truncate, feebly bisinuate 

 and as wide as one-half the interfoveal distance ; at the narrow 

 truncate apex the surface becomes abruptly vertical or even gradu- 

 ally feebly inflexed to the labrum, the vertical part one-half as long 

 as the upper horizontal part ; the frontal fovea is replaced by a 



