58. BULLETIN BROOKLYN ENTOM. SOC. VOL. V. December 1882-] 
. 
Fig. 7 The fj‘ antenna is much asin the preceeding, but 
joint 6 is not so decidedly prolonged, is heavier and only 
pubescent on prolongation: the joints widen regularly 
from 3 to 6, and are gSlabrous. (fig. 7.) 
<2 
e 8. Agassii, Lec. Proc. Ac. Phila. 1861, py345 OR 
Black; mandibles of Q small acute without tooth, thorax 
densely punctured, broader than that of o egonensis, with distinct smooth 
dorsal. line; elytra ‘obsoletely striate, striae punctured, interstices rugose 
with confused small punctures. Cal. 10 mm. 
Of this species I unfortunately have not seen the male, 
it appears to be very rare, and despite my endeavors I have 
not been able to obtain one. The antennz of the QD agree 
3 with the others of the genus; the terminal joint is rather 
t= more rounded, and there is a distinct transverse eo 
Fig. 8 at the middle as shown in figure 8. 
9. depressus, Lec., [ picews || Kirby, Fauna. Bor. Am. IV, 141.] Lee 
Agass. Lake Sup. 1850. p. 224. Black, the mandibles of the ¢ are much 
dilated at apex, but less curved than in gwercus; the hind angles of thorax 
“are said by Leconte in his original description of the species to be obtuse 
very little rounded, but specimens determined by him as depressus have 
the hind angles as stated in the synopsis. Lake Superior, Dakoia, Colo- 
rado, H.B.—13 mm. 
Male and Female antennz are given side by side in 
figure 9g, and this explains better than I can do the 
difference between them. In the male joints 7 to 10 are 
prolonged, pubescent; prolongations slender elongate: 
Fig, 9 jcints 5 to 6 somewhat prolonged inwardly. In the © 
joints 8 to 10 only are prolonged, pubescent and opaque, prolongations 
heavy and stout, 7 glabrous and acutely prolonged. 
CERUCHUS, 4 Leay. 
(Xeruchos==hornbearer. ) 
Elytra punctate not striate at the sides..... BURA HEA sed ste ec punctatus, 
Elytra striate. . 
Strize deep, strongly and coarsely pumctured.....:........ striatus. 
Strize shallow, more sparsely and less deeply punctured...... piceus. 
