NATIONAL ACADEMY OF SCIENCES. 



Volume XII. 



FIRST MEMOIR. 



MONOGRAPH OF THE BOMBYCINE MOTHS 

 OF NORTH AMERICA, 



INCLUDING THEIR TRANSFORMATIONS AND ORIGIN 

 OF THE LARVAL MARKINGS AND ARMATURE. 



PART III. 



FAMILIES CERATOCAMPID^ (EXCLUSIVE OF CERATOCAMPIN^), 

 SATURN I IMS, HEMILEUCID^), AND BRAHMiEID^E. 



BT 



ALPHEUS SPRING PACKARD, 



EDITED BY 



THEODORE D. A. COCKERELL, 



BEING A CONTINUATION OF PREVIOUS INVESTIGATIONS 



PUBLISHED AS VOLUME VII (FIRST MEMOIR) AND VOLUME IX (SECOND MEMOIR) OF THE 



MEMOIRS OF THE NATIONAL ACADEMY" OF SCIENCES. 



