Vol. 23, No. 3 (October 1940)

Table of Contents

Literature Review Articles

Baetine Mayflies from Florida (Ephemeroptera)
Lewis Berner
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33-39
Editor's Notes
J. R. Watson
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40-45
A Probable Color Dimorphism in Chlorion Habenum (Hymenoptera, Sphecidae, Sphecinae)
H. T. Fernald
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45-46
Back Matter
Editors
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