126 Cincinnati Society of Natural History. 
PHOTINUS. 
P. atomarius Er. 
MEGARTHRUS. 
M. excisus Lec. 
GLYPTOMA, 
G. costale Er. 
ELEUSIS. 
E. pallidus Lec. 
SIAGONUM. 
S. americanum Melsh. 
MICROPEPLUS. 
M. cribratus Lec. 
In addition to those enumerated [ have many species impossi- 
ble to identify at this time, some of which are doubtless new. 
TRICHOPLTERYGIDZE. 
“Feather Wings.” 
Most of these beetles are exceedingly minute, being the smail- 
est of beetles. It requires a powerful glass to study them. I find 
only two species, by sifting rubbish. They are: 
NOSSIDIUM. 
N. americanum Mots. 
TRICHOPTERYX. 
T. haldemani Lec. 
SCAPHIDIIDZ. 
Black shining beetles that live on fungus grown logs. 
SCAPHIDIUM. 
S. quadrimaculatum Say. S. quadripustulatum Say. 
S. obliteratum Lec. S. piceum Melsh. 
S. obliteratum is a form in which the dorsal punctures are 
nearly obliterated. Dr. Horn considered the last three varieties. of 
the first. Maj. Casey has a synopsis in Journal, N. Y. Ent. Soc., 
vol. VIII, June, 1900. 
CYPARIUM. 
C. flavipes Lec. 
BEOCERA. 
B. concolor Fab. 
Sifted from field mouse’s nest December, 1891. 
20 
