U.S. DEPARTMENT OF AGRICULTURE. 
DIVISION OP ENTOMOLOGY. 
Bulletin No. 19. 
AJST ENUMERATION 
OF THE 
PUBLISHED 
SYNOPSES. CATALOGUES, AND LISTS 
NORTH AMERICAN INSECTS; 
TOGETHER WITH OTHER INFORMATION INTENDED TO ASSIST THE 
STUDENT OF AMERICAN ENTOMOLOGY. 
WASHINGTON: 
GOVERNMENT PRINTING OFF ICE. 
18-8 8 . 
