Dury: Coleoptera of Cincinnati. 119 
N. sayi Lap. N. tomentosus Web. 
N. orbicollis Say. 
These large showy beetles are ill-smelling things, and when 
pinned, turn dark in drying and lose the bright yellow colors. 
Their appearance and smell can be much improved in preparing 
them for the cabinet, by making an opening between the segments 
and scraping out the soft parts. Then soak them for several days 
in ether or gasoline, after which fill up with cotton that has been 
dampened in carbolic acid, alcohol and corrosive sublimate. To 
secure specimens, place a dead mole, rat or bird in a suitable place, 
cover up lightly with bark or grass, and visit it daily during June, 
July, August and September. 
SILPHA. 
S. surinamensis Fab. S. noveboracensis Forst. 
S. ineequalis Fab. S. americana Linn. 
These frequent the same “banquet hall” as the above and 
require the same treatment. I have observed S$. swrinamensis 
feeding on the plump maggots of the “Blue fly.” They were 
chewing them up at a lively rate. 
NECROPHILUS. 
N. pettiti Horn. 
A rare species I have only found on fungus growing in thick 
woods. 
CHOLEVA. 
C. simplex Say. C. clavicornis Lec. 
C. basillaris Say. C. terminans Lec. 
These and the next occur on decaying vegetable and animal 
matter. I have also taken five specimens in nest of a mouse, 
ime: £2; 
PRIONOCH ATA. 
P. opaca Say. 
PTOMAPHAGUS., 
P. consobrinus Lec. P. parasitus Lec. 
P. pusio Lec. 
P. parasitus 1 find abundantly in the subterranean nests of a 
large black ant (Camponotus pennsylvanicus). July 21, 1891, I 
took 35 from a nest in an orchard. This ant makes nests in 
honeycombed trees and logs, and also in the ground. 
COLON. 
C. hubbardi Horn. C. undescribed species. 
COLENIS. 
C. impunctata Lec. 
13 
