JOURNAL 
OF THE 
J2f(d gork 6}nkmoIogiraI JJoripfyj. 
____ 
v oL VI. JUNE, 1898. No. 2. 
STUDIES IN THE PTINID^E, CIOIDiE AND SPHIN- 
DID^E OF AMERICA. 
By Thos. L. Casey. 
The term “America,” in the above title, is employed to designate 
that portion of the American continent embraced within the boundaries 
of the United States. There should be no more ambiguity in designat- 
j ing the United States of America as America simply, than in calling the 
j United States of Brazil, or the United States of Colombia by the last 
word of their respective titles. It may perhaps be considered egotistical 
foi us to appropriate to ourselves the name characterizing the continents 
of the western hemisphere, but as we have no other title to distinguish 
us among the numerous aggregates of united states which compose these 
continents, there is no reasonable motive' for avoiding the apparent 
conceit. 
i ptinid^e. 
Ptilinini. 
The insects of this tribe form an appropriate introduction to the 
Bostrichinae, for they are evidently a connective bond with the Anobiini. 
Our species have not been studied for many years. We have two 
genera as follows : — 
Antennae strongly flabellate in the male, serrate in the female.Ptilinus 
Antennae slender and feebly serrate in the male, shorter and somewhat stouter but 
rather more strongly serrate in the female. Euceratocerus 
The eyes are rather larger and more convex in Euceratocerus than 
n Ptilinus , but are much smaller in the female than in the male. Select¬ 
ing the apparent males by this character I have been unable to observe 
iny pectination of the male antenna in pleuralis , though it may exist 
n horni , of which I have not seen the male. 
