ILLUSTRATIONS. 



Page 



FIG. 1. Districts in Massachusetts infested by the gipsy moth in 1900 and 1905. . 9 



2. Egg mass of the gipsy moth ( Porihetria dispar) 12 



3. Full-grown caterpillar of the gipsy moth 12 



4. Pupa of the gipsy rnoth 12 



5. Male gipsy moth 13 



6. Female gipsy moth 13 



7. Manner of applying burlap bands 17 



275 



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