274 C0LE0PTERA OF NORTH AMERICA. 



are longer than those of the female, and the difference is caused 

 by the elongation of the third, fourth, and rifth joints, which thus 

 become more than twice as long as any of the following ones. 



Group III. — Eupomphae. 



A single New Mexican species, Eupompha fissiceps Lee, is 

 known to me ; it has the shape of Lytta, with the thorax and 

 elyti'a metallic bluish-green, the head and legs yellow, the elytra 

 reticulated, and the head divided by a very deep groove. 



The eyes are oval and oblique ; the antennae are filiform, with 

 the second joint very short, and are inserted between the eyes ; 

 the vertex is elevated, obtusely rounded, and deeply cleft ; the 

 last joint of the maxillary palpi is oval ; the mandibles are obtuse, 

 with a subapical tooth ; the anterior thighs have no sericeous 

 spot ; the outer spur of the hind tibiae is obtuse ; the tarsi are 

 pubescent beneath ; the claws are not serrate, the under portion 

 is about one-third shorter than the upper, and connate with it. 



In the male the first three joints of the front tarsi are very much 

 swelled, and very convex beneath, and deeply excavated above. 



Group IV.— Phodagae. 



Like the preceding, this group contains but a single species, 

 Phodaga alticeps Lee, from Arizona; it is entirely black, and 

 finely pubescent. 



The eyes are oval and longitudinal ; the antennae are not longer 

 than the head, inserted between the eyes, and filiform, with the 

 second joint very short ; the last joint of the maxillary palpi is 

 oval ; the labial palpi appear subulate, the last joint being cylin- 

 drical, not shorter than the penultimate, which is triangular ; the 

 mandibles are deeply emarginate at tip ; the head behind the eyes 

 is conical, and the vertex is very prominent ; the anterior thighs 

 have no sericeous spot ; the spurs of the hind tibiae are long, 

 slender, and acute ; the tarsi are spinous beneath ; the claws are 

 not serrate, the under portion is about one-third shorter than the 

 upper, and connate with it. 



The male in my collection has only one leg of the middle pair 

 preserved ; in it the tibia is dilated, and deeply longitudinally 

 excavated on the inner face. 



