78 Trans. Acad. Sci. of St. Louis. 
EXPLANATION OF ILLUSTRATIONS. 
In Figs. 1-8, the solid lines indicate males and the dotted lines, 
females. 
Plate I—¥Fig. 1. The emergence of 240 males and 213 females of 
Philosamia cynthia, New York and Philadelphia, 1913.—Fig. 2. The 
emergence of 46 males and 54 females of Telea polyphemus, St. Louis, 
913. 
Plate Il—Fig. 3. The emergence of 101 males and 82 females of 
Telea polyphemus, Fall River, Mass., 1913.—Fig. 4. The emergence of 
316 males and 287 females of Telea polyphemus, Augusta, Ga., 1913. 
Plate —Fig. 5. The emergence of 54 males and 50 females of 
Callosamia peowiathen. Fall River, Mass., 1913.—Fig. 6. The emergence 
of 123 males and 113 females of Samia cecropia, South St. Louis, 1913. 
Plate IV—Fig, 7. The emergence of 76 males and 67 females of 
Samia cecropia, New York, 1913.—Fig. 8. The emergence of 331 males 
and 320 females of Samia cecropia, St. Louis, 1913. 
Plate V.—Fig. 9. The emergence of 2237 Saturniid moths in rela- 
tion to temperature. The solid line indicates all insects observed of 
both sexes; the broken line denotes temperature. 
Issued December 22, 1914. 
