HOMGOLIZUS.—HEPHEBOCERUS. 19 
punctured, with two raised carine and a depressed space between them on the disc. 
Elytra elongate, dull, black, with large dull orange-coloured or tawny marks, not 
punctate, depressed along the suture, the depression with elongate carine (the second 
and third intervals of Stereodermus), the fourth interval obsolete, the fifth carinate, 
and in the middle incurved towards the suture. Legs slender, front tibie with 
a large process internally overhanging the ciliate excision. Peduncle of hind 
femora very long and slender. Under surface shining, breast and base of abdomen 
prominent. 
Mr. Champion procured a series of about two dozen examples of this elegant insect. 
It varies a good deal in size; there is but slight difference between the sexes: in the 
male the antenne are inserted rather farther from the eyes than they are in the female ; 
the former sex is apparently frequently of larger stature. 
Group TRACHELIZINA. 
HEPHEBOCERUS. 
Hephebocerus, Schénherr, Gen. Cure. v. p. 501 (1840). 
This genus consists of three South-American species. If was placed by Lacordaire 
in a tribe—Hephebocerides—distinct from the Trachelizides, but it is connected in 
the most intimate manner with Trachelizus by means of some of the forms found 
in our region. 
1. Hephebocerus mexicanus, sp. n. (Tab. I. fig. 17.) 
Rufo-castaneus, politus ; oculis magnis, spatio verticis inter oculos subcarinato, sat lato; antennis pedibusque 
gracilibus ; elytris obsoletissime seriatim punctatis. 
Long. 73 millim. 
Hab. Mexico, Motzorongo (Flohr), Cerro de Plumas (Hoge); Nicaragua, Chontales 
(Belt); Panama, Volcan de Chiriqui (Champion). 
Antenne very long, pubescent, ninth joint not differing in form, sculpture, or 
pubescence from those preceding it, except that it is distinctly longer; eleventh joint 
very long, somewhat swollen just before the middle, giving rise to a vague appearance 
of a division into two joints. Rostrum slender, as long as the thorax, very polished ; 
eyes large, convex, separated by a rather narrow space, which is somewhat raised; there 
is no median fovea behind, though the frontal elevation does not extend quite to the 
nuchal constriction. Thorax elongate, feebly constricted near the front, very shining ; 
punctuation scarcely visible and very scanty. Elytra very shining, with obsolete punc- 
tures. Under surface very shining; metasternum not sulcate, with a small deep fovea 
close to the apex, a minute space just behind the fovea minutely striate. 
Only one specimen was obtained in each locality. The species is very closely allied 
to the Brazilian H. nanus, but has the eyes more widely separated, and the explanate 
DD 2 
