Economic entomology for the farmer and the fruit grower, and for use as a text-book in agricultural schools and colleges; . economicentomolo00smit Year: 1906 Fig. 20T. Work of the round-head apple-borer, Saperda Candida.—a, piiiiciiire m wliich egg is laid ; b, same in section ; e, hole from which beetle has emerged ; /, same in section; g, pupa in its cell. Fk;. 2M2.

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