CERCYON. 105 
3. Cercyon insignis, (Tab. III. fig. 12.) 
Rotundato-ovalis, convexus, supra niger, nitidus, prothorace ad latera capiteque anterius picescentibus, subtus 
piceus, opacus, pedibus rufis ; antennarum basi palpisque testaceis; capite sparsim subtiliter, prothorace 
sparsim obsolete punctato ; elytris profunde striatis, striis crenatis, interstitiis posterius convexis, 
impunctatis. 
Tong. 2, lat. 12 lin. 
Hab. GuatEMata, Cerro Zunil 4000 to 5000 feet (Champion). 
The highly polished surface of the wing-cases and their very deep striation are 
distinctive of this species, which in other respects appears to be very closely allied to 
C. mexicanus. ‘The three individuals brought back by Mr. Champion are quite similar 
to one another. 
4. Cercyon mellipes. 
Spheridium mellipes, Say, Bost. Journ. Nat. Hist. i. p. 172". 
Cercyon mellipes, Mun. Cat. Col. ii. p. 498. 
Hab. Mexico }, 
I am not able to give any information about this insect. Say’s short description does 
not agree with any Mexican representative of this family known to me, and indeed 
leaves it quite doubtful to what modern genus his insect should be referred. It is, 
however, placed in Cercyon by the authors of the Munich Catalogue; on what authority 
I know not, as Leconte, in the collected edition of Say’s writings, allows this description 
to pass without any remark. It is quite possible that the species may be a large 
Cercyon of the C. mexicanus type. 
5. Cercyon politus. 
Ovalis, convexus, pernitidus, niger, elytrorum apice testaceo, pedibus rufis ; antennarum basi palpisque testaceis ; 
prothorace sparsim subtiliter punctato; elytris leviter striatis, striis internis ad basin haud impressis, 
interstitiis sparsim subtiliter punctulatis, 
Long. 12, lat. 4 lin. 
flab. Mexico, Cordova (Sallé). 
Head sparingly but distinctly punctured, shining. Thorax very shining, more or less 
piceous towards the sides, sparingly and finely punctate. Elytra very shining, with fine 
striae, which are rather remotely punctate: these strie all become finer towards the 
base; and the four or five inner consist in fact in their basal portion only of series of 
fine punctures, the interstices very sparingly finely punctate. The colour beneath is 
pitchy, rufescent towards the front; the mentum is much impressed, shining, and but 
little punctate; the mesosternal lamina is small, the prosternum finely carinate. 
This insect is scarcely so large as the European C. odsoletus, but is rather broader 
and less convex in proportion. I have seen only two individuals of it. 
BIOL. CENTR.-AMER., Coleopt., Vol. I. Pt. 2, December 1882. PP 
