NAT. ACAD. SCIENCES, VOL. 9. 



FIRST MEMOIR, PLATE XV. 



I,. H, .loulcl. del 



BALTIMOKP:. 



1. Citheronia spleudeus; 2. C. laocoou; •'{. Eacles iniperialis, var. 4. Egg of C. regalis. 



