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Transactions of the Wisconsin Academy of Sciences, Arts and Letters
volume XVI, Part I, No. 1

Severin, Henry C. M.; Harry H. P.
Habit of the American saw-fly, Cimbex americana Leach, with observations on its egg-parasite, Trichogramma pretiosa Riley,   pp. [61]-Plate VI PDF (5.1 MB)


Page [61]

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