13 Apr 09 - 24 Dec 13
Sort by Common Name
Sort by Scientific Name
Sort by Taxonomy
Search Field Guide
Montana Field Guide
Field Guide Home
Montana Field Guides
Other Field Guides
Kingdom - Animals -
Phylum - Insects, Springtails, Millipedes -
Class - Insects -
Order - Dragonflies / Damselflies -
Family - Darner Dragonflies -
Species - Subarctic Darner -
Subarctic Darner -
Image Copyright and Usage Information
Species of Concern
FWP Conservation Tier
The Subarctic Darner is circumboreal in its distribution, but is a fairly uncommonly occurring member of the family Aeshnidae found in isolated mountainous regions of Montana and is a species of concern. Darners are among the largest and fastest-flying North American dragonflies. Preferred breeding habitat of the Subarctic Darner is in swamps, fens, and bog ponds with a clear vegetative edge of abundant sphagnum and other mosses (Dunkle 2000, Paulson 2009). Similar to the Sedge Darner with black face line present, but lateral thoracic stripes are bent forward and have 2 narrow yellow spots present between the stripes.
Similar to the Sedge Darner with black face line present, but lateral thoracic stripes are bent forward and have 2 narrow yellow spots present between the stripes.
Summary of Observations Submitted for Montana
Number of Observations:
(Click on the following maps and charts to see full sized version)
Map Help and Descriptions
(Records associated with a range of dates are excluded from time charts)
The Subarctic Darner is circumboreal in it's distribution, occurring throughout central and northern Europe, Eurasia and Japan (Dunkle 2000, Paulson 2009). In Montana, this species is currently known only from Mud Lake near Skalkaho Pass, Granite Co., though it probably occurs in other boreal areas of western Montana (Miller and Gustafson 1996).
The Subartic Darner breeds in swamps, fens, and bog ponds with a clear vegetative edge of abundant sphagnum and other mosses (Dunkle 2000, Paulson 2009).
Larvae feed on a wide variety of aquatic insects, such as mosquito larvae, other aquatic fly larvae, mayfly larvae, and freshwater shrimp. They will also eat very small fish and tadpoles. Adult- The dragonfly will eat almost any soft-bodied flying insect including mosquitoes, flies, small moths, mayflies, and flying ants or termites.
Male Subarctic Darners are only territorial at low population densities and do not patrol regular routes. They fly over open water and floating sphagnum mats, hover for a period then continue on to another floating mat. Females oviposit in mosses and sedges at the waterline at the edge of open water (Dunkle 2000, Paulson 2009).
Web Search Engines for Articles on "Subarctic Darner"
Additional Sources of Information Related to "Insects"
Butterflies and Moths of North America
Dragonfly Society of North America
Mayflies of North America
Natural Heritage Tracker (Statewide Database of Animal Observations)
North American Dragonflies - Slater Museum of Natural History
North American Stonefly List
Trichoptera World Checklist
Animal Species of Concern Report
Plant Species of Concern Report
Species of Concern
Living With Wildlife
Discover Montana's EcoSystems
Want to put the field guide on your site?
Citation for data on this website:
Subarctic Darner — Aeshna subarctica. Montana Field Guide. Retrieved on August 28, 2010, from http://FieldGuide.mt.gov/detail_IIODO14170.aspx
Privacy & Security
There are currently 7 active users in the Montana Field Guide.