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Hetaerina titia and tricolor (dragonflies-Odonata).
Author: Williamson, E. B.
Call no: RP3785
Year: 1912
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The dragonfly Argia moesta and a new species (Odonata).
Author: Williamson, E. B.
Call no: RP3786
Year: 1912
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A new dragonfly genus of the legion Protoneura (Odonata).
Author: Williamson, E. B.
Call no: RP3787
Year: 1916
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A new Cyanogomphus (Odonata).
Author: Williamson, E. B.
Call no: RP3788
Year: 1916
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Some species of Leptagrion with descriptions of a new genus and a new species (Odonata).
Author: Williamson, E. B.
Call no: RP3789
Year: 1917
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Results of the University of Michigan - Williamson Expedition to Colombia 1916-1917. 3. Archaeogomphus, a new genus of dragon-flies (Odonata).
Author: Williamson, E. B.
Call no: RP3791
Year: 1919
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Variation in color pattern of the dragonfly Gomphus crassus (Odonata).
Author: Williamson, E. B.
Call no: RP3792
Year: 1919
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Two days with Indiana Odonata.
Author: Williamson, E. B.
Call no: RP3795
Year: 1921
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Libellulas collected in Florida by Jesse H. Williamson, with description of a new species (Odonata).
Author: Williamson, E. B.
Call no: RP3797
Year: 1922
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1912 (2)
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