Economic entomology for the farmer Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; economicentomol00smit Year: 1906 272 AN ECONOMIC ENTOMOLOGY. Fig. 297. A tubercle from a saddle-back moth, Emf>rrtia slimulea, showing the poisonous spines, very much enlarged. The short pointed tips break off readily and remain in the wound.

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