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SOME CANADIAN POPLAR APHID GALLS
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- Journal:
- The Canadian Entomologist / Volume 109 / Issue 3 / March 1977
- Published online by Cambridge University Press:
- 31 May 2012, pp. 321-328
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PEMPHIGUS SPIROTHECAE (HOMOPTERA: APHIDOIDEA), AN APHID WHICH CAUSES SPIRAL GALLS ON POPLAR IN QUEBEC
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- Journal:
- The Canadian Entomologist / Volume 106 / Issue 11 / November 1974
- Published online by Cambridge University Press:
- 31 May 2012, pp. 1229-1231
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II.—On the Occurrence of a New Fossiliferous Horizon in the Ordovician Series of the Lake-District
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- Journal:
- Geological Magazine / Volume 4 / Issue 8 / August 1887
- Published online by Cambridge University Press:
- 01 May 2009, pp. 339-344
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