The
Dragonflies (Insecta: Odonata)
of the Columbia Basin, British Columbia:
Field Surveys, Collections Development and Public Education
Table
of Contents
Lestes dryas Kirby
Emerald Spreadwing
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Provincial Status
CDC rank: S5
Widespread throughout most of British Columbia, but not recorded
from the north coast.
Columbia-Kootenay Distribution
Found in all parts of the region.
Global Distribution
Alaska east to the Northwest Territories, James Bay and the north
shore of the St Lawrence River and Nova Scotia; south to Virginia,
Nebraska and California (Westfall and May 1996). Faunal element:
Widespread, Holarctic (see Appendix 2).
Biological Information
Lestes dryas is the only holarctic (occurring in both Eurasia
and North America) member of the family. In British Columbia, L.
dryas is usually the first Lestes to emerge in the year.
It is common in early summer, especially around small ponds and
places that may dry up in summer. Flight records in the Columbia
Basin range from 24 June to 24 August.
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