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OCCUPANTS OF THE GALLS OF EUROSTA SOLIDAGINIS, FITCH
Published online by Cambridge University Press: 31 May 2012
Extract
These conspicuous spherical galls occur somewhat rarely at Ottawa upon the stems of Solidago rugosa, and have been found to yield only the handsome fly with produces them, and its parasite Eurytoma gigantea, Walsh. The 24th May last I spent at Casselman, about thirty miles southward from Ottawa, with Mr.Fletcher, and we found the galls abundant upon Solidago serotina, upon the banks of the South Nation.
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