12 INSECTA. 
hairs; the last joint of the maxillary palpi is not larger than the pre- 
ceding one, while the same of the labial palpi is longer; the mentum 
is profoundly emarginated ; the anterior tibie are elongated, their 
external side is furnished with numerous teeth, and the extremity on 
the opposite side witha single spur or spine ; the epistoma is lozenge- 
shaped. 
Sometimes the thorax of the male is armed with horns. They are 
the Ceratophyus of Fischer, or Armidens, Ziegler. 
G. typheus; S. typheus, L.; Oliv., Col. 1,3, vii, 52. Black ; 
three projecting black horns before the thorax of the male, of 
which the intermediate is the shortest; elytra striated. In high 
and sandy localities. 
G. momus; S. momus, Fab. This species, discovered in 
Spain by Count Dejean, differs from the Typhzeus in the smooth- 
ness of the elytra; it is otherwise similar. 
G. dispar ; Ceratophyus dispar, Fisch., Entomog. Russ. Imp., 
II, xviii. A horn on the head and thorax. Italy and Russia. 
Sometimes both sexes are destitute of horns. They are the Geo- 
trupes proper. 
G. stercorarius ; Scarabeus stercorarius, L. ; Oliv., Ib. V, 39. 
A shining black or deep green above, violaceous or golden 
green beneath; a tubercle on the vertex; dotted bands on the 
elytra, with smooth intervals; two indentations at the base of 
the posterior thighs. 
G.vernalis ; Scarab. vernalis, L.; Oliv., Ib,, iv, 23. Shorter 
t an the stercorarius, and approximating to a hemispherical 
figure; a violet or blue-black ; antennee black; elytra smooth. 
Ocuopxus, Meg.— Me oxonrua, Fab. 
The labrum in this subgenus is strongly emarginated, and almost 
in a form of a heart truncated posteriorly. The mandibles are in the 
form of an elongated triangle, one of them terminating in a simple 
point, with a notch beneath, and the other in two obtuse teeth. 
The exterior lobe of the maxillz is bordered with little spines or 
stout cilia hooked at the end and two small horny and equal inner 
teeth; the other, or internal lobe, is formed by a pointed pencil of 
hairs. The last joint of their palpi is cylindrical, and much louger 
than the penultimate; the second of the labial palpi is larger than 
the others, and the following, or last, in the form cf a truncated ovoid. 
There are but two teeth on the exterior side of the anterior tibia, 
and two spines may be observed on the extremity of the opposite 
side, of which the inferior is the smallest. The body is less elevated, 
in proportion, than that of the other Geotrupes, and is destitute of 
horns *. ’ 
Those Geotrupes, in which the antennal club is large, orbicular or 
nearly globular, and whose first and last leaflet when contracted com- 
* Melolontha chrysomelina, Fab.; Panz., Faun. Insect. Germ., XXXIV, 2. 
