16 INSECTA. 



ceeding ones, and the four posterior tibise are slender or not thick, al- 

 most cylindrical, slightly dilated at the extremity, and without deep 

 lateral incisures or emarginations. 



The labrum is entirely concealed. The terminal lobe of the max- 

 illae is simply pilose. The antennae consist of ten joints ; the suppu- 

 tation of their number in the Encyc. Method., article Scarabees, 

 which amounts to but nine, is erroneous. 



I know two species, both from Brazil *. 



Sometimes the maxillae, usually corneous or scaly, are more or less 

 dentated. In 



ScARABiEus proper. — Geotrupes, Fab. 



The body is thick and convex, and the outer side of the mandibles 

 sinuous or dentated. 



The equatorial countries of both hemispheres produce very 

 remarkable species of this subgenus. 



S. Hercules, L. ; Oliv., Col. I, 3, 1, xxiii, 1. Five inches 

 long ; black ; elytra greenish-grey mottled with black ; a re- 

 curved and dentated horn on the head of the male, and a second 

 one, long, projecting and pilose beneath, with a tooth on each 

 side on the thorax. South America. Some travellers call it the 

 Mouche cornue\. 



S. dichotomus, Oliv., lb. XVII, ]56. A fine maronne-brown ; 

 a large bifurcated horn with cleft branches on the head ; a se- 

 cond one, smaller, curved and bifid at the end, on the thorax of 

 the male. The East Indies. 



S. longimanus, L. ; Oliv., lb. IV, 27- Fulvous-brown ; head and 

 thorax destitute of horns and tubercles ; the two anterior legs 

 more than half as long again as the body, and arcuated. The 

 East Indies. 



S. punctatus, Oliv., lb., VIII, 70. Black ; punctured ; [no 

 elevation in the shape of a horn in either sex ; the epistoma 

 truncated anteriorly, and the angles of the section slightly raised 

 in the manner of teeth; two approximated tubercles on the 

 middle of the head \ (a). The only species in France. 



not differ from the preceding. The anterior margin of the labrum is salient or 

 exposed. The maxillce are terminated by a bundle of spinuliform cilia, acuated out- 

 wards, with a crustaceous triangular lobe. The antennal club is nearly globular. 

 His genus Dasygnathus, placed by him in his family of the Dynastides, is unknown 

 to us, but we presume, from the description of its characters, that it approaches the 

 preceding and following genus. 



» The Mgeon of Fabricius is perhaps congeneric. 



t This species is the type of the genus Dynast es, Kirby. The S. Actaon forms an- 

 other, that of Megasoma. See Lin. Trans., XIV. 



+ The Geotrupes of Fabricius, with the exception of the precited species, forming 

 the genus Oryctes, and of the following one. 



((i) 5^ Several species of this genus are found in the United States, among which 

 should be particularly noticed the large and splendid Sc. Tilyus, the Antceus, &c. — 

 Eng. Ed. 



