Dragonflies and Damselflies: References

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Registered uses of reference:
Walker, E. M. (1912) The North American Dragonflies of the Genus Aeshna. University Toronto Studies Biological Series no. 11: 1-213, incl. pl. 1-28.
Genus authorship : 0

Species-level taxonomy : 0

Subspecies taxonomy : 1
Aeshna umbrosa occidentalis

Synonyms : 0

Descriptions : 0

Keys : 0

Distribution : 0

Conservation : 0

Habitat : 0

Biology : 0