Economic entomology for the farmer and fruit-grower : and for use as a text-book in agricultural schools and colleges . THE INSECT WORLD. 287 retracted, and the tongue is obsolete, so that the insect is in-capable of feeding-. None of our American species attack culti-vated plants or trees so as to become injurious, though in forests Fig. Goat-moths. Priunoxysliis robinice, female and male, and their larva. young oak timber is sometimes badly injured by the Prionoxys-tiis robinicE. There has been recently introduced into the Eastern UnitedStates a European species known as the leopard-mo
Economic entomology for the farmer and fruit-grower : and for use as a text-book in agricultural schools and colleges . THE INSECT WORLD. 287 retracted, and the tongue is obsolete, so that the insect is in-capable of feeding-. None of our American species attack culti-vated plants or trees so as to become injurious, though in forests Fig. Goat-moths. Priunoxysliis robinice, female and male, and their larva. young oak timber is sometimes badly injured by the Prionoxys-tiis robinicE. There has been recently introduced into the Eastern UnitedStates a European species known as the leopard-moth, Zeiizeiapyrina, and this has become a pest on the shade-trees in severalof our Eastern cities. The male moths expand a little more thanan inch, the female over two inches, and both are white, spottedwith black, whence the common name leopard-moth. Thereis great difficulty in dealing with insects of this character, owingto their food habits. Fortunately, even in this imported form,the natural checks seem to prevent its doing much injury toorchards or country trees ; but in the cities and towns it threat-ens the life of the shade-trees. The only recommendation to 288 .-^A ECONOMIC ENTOMOLOGY. be made is constant watching by some man especially employed,who will destroy the borers just as soon as their presence isnoticed, and who will
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