Somatochlora williamsoni (Williamson's Emerald)Similar in distribution and abundance to S. walshii, tends to fit the “Somatochlora pattern” for Vermont, i.e. mostly found in the Northeastern Highlands, Northern Piedmont and Green Mountains. Its ability to breed away from peatlands most likely accounts for occurrences in the Champlain Valley and elsewhere in the state. Although forest clearings are most reliable, it has also been located at small farm ponds and beaver wetlands.

Status: G5 N5 S3S4

Flight Period: June 27 – September 6

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Click on the map to view it in Odonata Central and see attributes for each point.