138 Cincinnati Society of Natural History. 
TROGOSITA. 
T. virescens Fab. 
This species has been introduced with logs brought to the saw 
mills I think. 
TENEBRIOIDES. 
T. mauritanica Linn. T. castanea JAZelsh. 
T. dubia Melsh. T. bimaculata Melsh. 
T. marginata Beauv. 
GRYNOCHARIS. 
G. 4-lineata Mels. 
This is a very rare species. I have only taken three. 
MONOTOMA. 
M. producta Lec. M. fulvipes dZels. 
M. picipes Hbst. 
HESPEROBENUS, 
H. rufipes Lec. 
EUROPS. 
FE. pallipennis Lec. 
BACTRIDIUM. 
B. ephippigerum Guer. B. striolatum Leeit. 
DERODONTID-. 
Our only species of the family is very abundant in fungi. 
DERODONTUS. 
D. maculatus Wels. 
BY RRELIDAE 
“Pill Beetles.” 
Some of the genus Byrrhus, when they have their pubescence 
perfect, are a pill the Coleopterist likes to take into his bottle. 
Only two species occur here, they are 
NOSODENDRON. 
N. unicolor Say. 
LIMNICHUS. 
LOsp. 
GEORYSSID/. 
Small round coarsely punctured black beetles that live on the 
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