[May 1884. BULLETIN BROOKLYN ENTOM. SOC. VOL. VII. 9 
The species is blackish or blackish-brown, the elytra of lighter brown 
and in © frequently with yellowish transparent spaces. Length 1.75 to 
2.50 inches, 55—63 mm. fad. Pacific Slope and N.. Mex. 
STENOCDONTES, “rv. 
The occurrance of S. mandibularts in Southern Florida requires the 
addition of this genus to our fauna. As defined by Serville (Ann. Fr, 
1832, p. 173) it differs from AZa//odo in the mandibles which are glab— 
rous, and in the G much longer than the head, and in the antennz 
which are longer, reaching in the ({‘ two thirds the length of the insect 
and about halfin the Q. The species is 
§. mandibularis Fab. (Prionus), Syst. El. t. 2, p. 261; exsertus Oliv. Ent. t. 4, 
(Ds U7, jolle WADI, tive, Bitte 
The insect is dark brown, head and thorax more blackish, elytra 
somewhat paler. Easily distinguished by its very large size and the pro— 
minent mandibles of the 9. The species is not common in collections, 
and is confined in our fauna to Southern Fla. Southward it is more 
common. Length 2.75 to 3.25 inches, 65—84 mm. Aad, Southern 
Florida. 
MALLODON, “err. 
This genus also contains species of large size with the sides of the 
prothorax armed with numerous small teeth. The head is comparatively 
large, the eyes strongly granulated, distant, transverse, feebly emarginate. 
Antenne are slender not exceeding half the length of the body in the 
and shorter in the Q, The sexual differences are worthy of note. The 
prothorax in the ,j\ is nearly quadrate, densely punctured, with smooth 
separate facets, while in the Q it is narrowed in front, more coarsely 
punctured towards the sides and uneven on the disk. The species may 
be distinguished by the following 
SYNOPTIC TABLE OF MALLODON, 
by G. H. Horn, M. b. 
Mandibles nearly horizontal, prolonged in the ¢j'; sutural angle of elytra 
spiniform in both sexes. 
Metathoracic episterna with inner outline concave.................. mandibularis. 
Metathoracic episterna with inner outline straight.............. BS RUA dasystomus, 
Mandibles vertical, head somewhat deflexed; sutural angle spiniform J; 
rounded ©. 
Thorax very decidedly serrate...... RET «| o. OO eA Re eta FRePn eee iene red melanopus. 
Wiitoraxmatien chemmlatethamisencate ys... ./ sues nelyeds soc sha do eke serrulatus. 
M. mandibuiaris Gemm. Col. Heft. X, 1872, p. 254; gnatho || Lec. Proc. Ac. 
Phila. 1858, p. 81; dentiger Lec. 1873, Crotch Check List, p. 82. 
This species is recognized by Lacordaire as forming a distinct genus 
