NORTH OP MEXICO. 



387 



H. cavus, Leo., New Species, p. 129. 



Head and thorax rufous, elytra blackish, with long hairs. Abundantly distinct in the 

 broad thoracic groove. 

 Length .15 inch. 

 Occurs in Kentucky. 



ft 



PBNTAPHYLLUS, Lair. 

 Pentaphyllus, Latr., Regne Animale c<l. 2, p. 80. 

 P. pallidas, Jaw., New Species, p. 120. 



"Belongs to the same division as the European P. testacew, having the epistoma 

 broadly rounded, and the anterior tibiae not dilated; it differs in having the body be- 

 neath testaceous." The color of the body is entirely testaceous above and beneath. 



Length .10 inch. 



Abundant in Canada West; collected by Mr. Johnson Pettit. 



P. oalifornicus, n. sp. 



Similar to pallidiis in form, color and sculpture, differing in being more depressed and 

 with the centres of the first two abdominal segments brown, almost black. 

 Length .0!) inch. 

 Fort Crook, Cal. 



Since the publication of the description of the preceding species, T have been enabled 

 to examine a, large series of specimens, through the kindness of Mr. Pettit of Grimsby, 

 Ontario. The males of pallidus are very distinctly bituberculate on the front between the 

 eyes, and arc usually larger than their females. The head of the female is very convex in 

 pallid us, but in cd,/ if omicus there is an increase of the convexity in the place of the tuber- 

 cles of the male. The unique in the cabinet of Dr. Leoontc at the time of the descrip- 

 tion of pallidus was a female, hence the failure to note tin: above character, which will 

 serve additionally to separate our species from the European. Prom the figure given by 

 Duval, P. teatacem is much more acute behind than either of our species, which are very 

 obtuse and alike in both sexes. 



TRIBE XXVIII — BOLITOPIIAGINI. 



Last joint of palpi not securiform. Head short, deeply inserted. Epistoma semi- 

 circular in front. Antenna' partly received, in repose, in a transverse gular groove 

 between the eyes. Outer joints of antennas perfoliate, rarely pectinate. Scutelhun dis- 

 tinct. Anterior coxae sub-cylindrical. Tibia: simple, spurs small or absent. Tarsi short, 

 feebly pubescent beneath, usually compressed, with the first joint usually very small, last 

 joint long 



