Coleoptera of the Cincinnati Region. 251 
ARTICLE X.—ECOLOGICAL NOTES ON SOME COLEOP- 
TERA OF THE CINCINNATI REGION, INCLUDING 
SEVEN NEW SPECIES. 
By CHARLES Dury (CINCINNATI). 
HAMOTUS BATRISIOIDES Lec. 
I have taken a number of this curious species by sifting the 
decayed and honeycombed interior of a standing dead tree. 
Both males and females were taken. I notice that the anten- 
nal club of female is smaller than that of the male. April 2 
to May 2, Cincinnati, Ohio. 
HOMGUSA EXPANSA Lec. 
This flat little species was sifted from a nest of pale ants, 
Lastus claviger, May 7. 
SCOPAOPSIS DURYI Casey. 
Sifted from the debris of a patch of withered fungus, 4gar7- 
cin@; three specimens. See Revision of American Peederini. 
Casey. Trans. St. Louis Acad. 1905, vol. xv., No. 2, p. 216. 
PTINIDIUM LINEATUM Lec. 
This very minute species lives under the decaying bark of 
the “Honey Locust,” in moist places. I have also sifted it 
from the debris at the base of these trees. May 4. 
ANAMORPHUS PUSILLUS Zimme. 
One specimen, July 7, taken feeding on fungus on beech 
log in company with Aymébus minor, which species it resem- 
bles in an astonishing manner. 
COLYPHUS MELANOPTERUS MN. sp. 
Jet black, shining, except the thorax, which is rose pink, 
and the mouth and front, which are pale testaceous. Head 
Jour. CIN. Soc. Nat. Hist. VOL. XX, No. 7. PRINTED MARCH 8, 1906 
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