UNITED STATES 

 DEPARTMENT OF AGRICULTURE 



/< 7 



Washington, D.C. 



February 1967 



HYMENOPTERA OF 



AMERICA NORTH OF MEXICO 



SYNOPTIC CATALOG 



(Agriculture Monograph No. 2) 



SECOND SUPPLEMENT 



Prepared by the staff and collaborators of the Hymenoptera Unit, 

 Insect Identification and Parasite Introduction Research Branch, 

 Entomology Research Division, Agricultural Research Service, 



under the direction of 

 KARL V. KROMBEIN and B. D. BURKS 



^ nj 

 = a 



= CD 



= a 



UNITED STATES 



GOVERNMENT PRINTING OFFICE 



WASHINGTON: 1967 



For sale by the Superintendent of Documents, U. S. Government Printing Office 

 Washington, D.C. 20402 Price $2.75 



