JOURNAL 



J0Ffo ]9ork ([jnfamologiral %nm% 



Vol. VI. JUNE, 1898. No. 2. 



STUDIES IN THE PTINID^E, CIOID^E AND SPHIN- 

 DIDiE 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- 

 ing the United States of America as America simply, than in calling the 

 United States of Brazil, or the United States of Colombia by the last 

 word of their respective titles. It may perhaps be considered egotistical 

 for 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. 



ptinim:. 



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 : — 



Antennte strongly flabellate in the male, serrate in the female Pt Minus 



Antennce 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 

 in 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 

 any pectination of the male antenna in plcuralis, though it may exist 

 in horni, of which I have not seen the male. 



