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ig. 1.1 Photomicrograph of the egg of Pieris rape, showing 
the larva in the act of gnawing out. Magnified, about 45 
diameters. 
Fig. 1. Same as Fig. 1!,after hatching. Magnified approximately, 
30 diameters. 
Fig. 2. Portion of cabbage leaf showing larva of Pieris rape 
covered with cocoons of a parasite (Apaniales glomeratus). 
Natural size. Diagrammatic. 
Fig. 3. Photomicrograph of the egg of Plusia brassicw. Magni- 
fied approximately, 20 diameters. 
Fig. 4. Female of Plusza brassice. Natural size. 
Fig. 4". Male of Plusza brassice. Natural size. 
Fig. 5. Two sizes of larva of Plusia brassice on portion of cab- 
bage leaf. Natural size. 
Fig. 6. Portion of cabbage leaf showing larva of Plutella cruci- 
Jerarum feeding. Slightly magnified. 
Fig. 61. Cocoon of Plutella cruciferarum. 
Figures 1, 1’, 3, 4, 4", 5, 6 and 6* were photographed from nature 
by Mr. L. V. Hallock, of Queens, N. Y., from material furnished 
by the writer. 
