A year at a glance in Jefferson County
When each species’ records usually fall in Jefferson County, 2016 to 2025: the bar runs from the early to the late week, and the line marks the middle week. It shows when people recorded each species, not when it is there.
| Species | Usual weeks |
|---|---|
| Dragonflies and damselflies | |
| Eastern Forktail | late April to mid-August, middle week Jun 7–13 |
| Common Whitetail | mid-May to late August, middle week Jun 21–27 |
| Ebony Jewelwing | mid-May to late August, middle week Jun 21–27 |
| Double-striped Bluet | early June to early September, middle week Jul 5–11 |
| Black Saddlebags | late May to late August, middle week Jul 12–18 |
| Eastern Amberwing | late June to mid-September, middle week Jul 12–18 |
| Widow Skimmer | early June to mid-September, middle week Jul 19–25 |
| Dusky Dancer | late June to early October, middle week Aug 9–15 |
| Halloween Pennant | early July to early September, middle week Aug 16–22 |
| Autumn Meadowhawk | No season: most records are from one year |
| Blue Dasher | No season: recorded in two separate seasons |
| Blue-ringed Dancer | No season: recorded in two separate seasons |
| Eastern Pondhawk | No season: recorded in two separate seasons |
| Fragile Forktail | No season: recorded in two separate seasons |
| Lancet Clubtail | No season: most records are from one year |
| Powdered Dancer | No season: most records are from one year |
| Prince Baskettail | No season: most records are from one year |
| Skimming Bluet | No season: most records are from one year |
| Variable Dancer | No season: recorded in two separate seasons |