COLEOPTBRA. 
391 
Mysa, Zieg. 
These Insects resemble the Feroniae which constitute the genus 
Cheporus, but their thorax is more dilated laterally, and narrowed 
near its posterior angles, immediately before which is a little emar- 
gination. The labial palpi terminate in an evidently thicker and 
nearly triangular joint. 
Two species are known, one from Hungary, the M. Chaly- 
b(Eus, and the other from North America, where it was disco- 
^red by Major Le Conte* *. [The M. cyanescens, !>&].— Eng. 
^ Sometimes the mandibles are as long as the head, and extend con- 
siderably beyond the clypeus. The body is always oblong, and the 
thorax in the form of an elongated heart. Some of them resemble 
Scaritides amd others Lebiae. 
Cephalotes, Bon. — Broscus, Panz. 
Length of the antennae almost equal to half that of the body; their 
joints short, the first shorter than the two following ones taken 
together; the right mandible strongly unidentated on the internal 
side ; labrum entire f 
Stomis, Clairv. 
The antennae longer than the half of the body, and composed of 
elongated joints, the first of which is longer than the two following 
ones taken together; the middle of the internal side of the right 
mandible deeply notched ; the labrum emarginate The following 
subgenus 
Catascopus, Kirby, 
Is distinguished from the two preceding subgenera, to which it 
otherwise approximates in the relative length of the third joint of 
the antennae, by the flatness of the body, by being proportionably 
wider, with a shorter thorax, by the elytra being strongly emarginate 
laterally at their posterior extremity, and by the elongation of the 
labrum. The eyes are larger and protuberant. These are ornamented 
Hor. Entom. V, i. See also the Ann. des Sc. Nat. and Ann. des Sc. Phys., of MM. 
Bory de Saint-Vincient, Drapiez and Van-Mons. I refer the Abaw corsicus, Dej., to 
the same subgenus. 
* Other species, analogous in the form of their labial palpi, but with stouter man- 
dibles, in which the tooth of the mentum is much larger, and peculiar to the East In- 
dies form the genus Trigonomota of Count Dejean, the characters of which are given 
in the third volume of his Species des Coldopt^res. Here also should be placed the 
genus Pseudomorpha of Kirby, Lin. Trans. XIV, 98. 
t Cambus cephalotes, Fab. ; Panz., Faun. Insect. Germ., LXXXIII, 1 ; Entom. 
Ind., p. 62. 
J Stomis pumicatus, Clairv. Entom. Helv. II, vi. 
