ERRATA 
Page 2, line 18 from bottom, for this year read in 1910. 
Plate I, facing page 8, after line at bottom, insert: a, Work of larva in bulb of plant; 
6, larva ascending stem to pupate; c, pupa in cell, the gallery plugged withfrass below. 
Much enlarged. (Original.) 
Page 12, line 19 from bottom, before corn borer insert double quotation mark in 
place of single quotation mark. 
Page 15, line 16, for were read was. 
In Plate IV, facing page 24, the cut of figure 1 is upside down. 
Page 46, line 16 from bottom, after 4 insert per cent. 
Page 74, last line, insert superior figure 1 (*) before Bureau. 
Page 76, line 16 from bottom, for littorale read aviculare. 
Page 77, line 12 from bottom, for littorale read aviculare. 
Page 81, line 4, after monograph insert comma. 
Page 81, line 5 from bottom, before Dr. insert of. 
Page 82, line 5 from bottom, for littorale read aviculare. 
Page 83, line 8, for littorale read aviculare. 
XII 
