118 Cincinnati Society of Natural History. 
HYDROCHARIS. 
H. obtusatus Say. 
BEROSUS. 
B. peregrinus Hbst. B. striatus Say. 
LACCOBIUS. 
L. agilis Rand. 
PHILHYDRUS. 
P. nebulosus Say. P. cinctus Say. 
P. ochraceus Mels. 
HYDROCOMBUS. 
H. maculicollis Muls. H. fimbriatus Mels. 
HYDROBIUS. 
H. globosus Say. H. subcupreus Say. 
CERCYON. 
C. pubescens Lec. C. hemorhoidale Fab. 
C. pretextatum Say. 
PHANONOTUM. 
P. extricatum Say. 
MEGASTERNUM. 
M. costatum Lec. 
CRYPTOPLEURUM. 
C. vagans Lec. 
LEPTINIDA. 
“Mammal Nest Dwellers.” 
LEPTINUS. 
L. testaceus Mirell. 
This curious little flat, pale, eyeless beetle, I have found only 
in the nests of small mammals, such as field mice, etc. From one 
nest I took 90 specimens, and many escaped by running away so 
rapidly I was unable to gather them all. I think they are only 
guests of the animals, as I have found them in nests that have 
been long since deserted by the animals. See note, “What I found 
in nest of field mouse.” This Journal, 1892. 
Sleep As, 
“Carrion Beetles.”’ 
NECROPHORUS. 
N. americanus Oliv, N. marginatus Fab. 
12 
