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Montana Field Guide

Montana Field Guides

Emerald Spreadwing - Lestes dryas

Native Species

Global Rank: G5
State Rank: S5


Agency Status
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General Description
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Species Range
Montana Range Range Descriptions

Native
 


Range Comments
The Emerald Spreadwing is common across North America's temperate region including as far north as Alaska and the Yukon. This species, although named the Scarce Emerald Damselfly, is also present across Europe and Asia (Acorn 2004).

Observations in Montana Natural Heritage Program Database
Number of Observations: 248

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Emerald Spreadwings tend to select temporary or permanent and usually wooded ponds and fens, often acidic, as well as backwaters of streams as habitats. They can also be commonly found in nearby forests and shrublands away from breeding sites (Westfall and May 1996, Nikula et al. 2002, Acorn 2004, Paulson 2009).

National Vegetation Classification System Groups Associated with this Species

Food Habits
Larvae feed on a wide variety of aquatic insects, such as mosquito larvae, other aquatic fly larvae, mayfly larvae, and freshwater shrimp.
Adult- This damselfly will eat almost any soft-bodied flying insect including mosquitoes, flies, small moths, mayflies, and flying ants or termites.

Reproductive Characteristics
Male and mated pair Emerald Spreadwings tend to stay over dry land rather than over water. Oviposition is completed in tandem and the female usually places a single egg in each stem incision of sedge, grass, or horsetail, as well as willow leaves (Nikula et al. 2002, Paulson 2009).


References
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Citation for data on this website:
Emerald Spreadwing — Lestes dryas.  Montana Field Guide.  .  Retrieved on , from