Vol. 23, No. 3 (October 1940)

Literature Review Articles

• Baetine Mayflies from Florida (Ephemeroptera)

  Lewis Berner

  33-39

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• Editor's Notes

  J. R. Watson

  40-45

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• A Probable Color Dimorphism in Chlorion Habenum (Hymenoptera, Sphecidae, Sphecinae)

  H. T. Fernald

  45-46

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• Back Matter

  Editors

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