Lestes rectangularis
In 3 days ~10% in a week ~20%
Lestes rectangularis is a species of damselfly in the family Lestidae, the spreadwings. It is known by the common name slender spreadwing. It is native to eastern North America, including eastern Canada and the United States.
This damselfly is long and thin. The body is black with a pale blue face, and the wings have yellow edges. The female is larger, with paler yellow on the wings. This species lives along springs and drying ponds. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Point Pelee National Park | 🇨🇦 Canada | |
| 2 | Acadia National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Toronto | 🇨🇦 Canada | |
| 2 | Boston | 🇺🇸 United States | |
| 3 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 4 | Montreal | 🇨🇦 Canada | |
| 5 | Chicago | 🇺🇸 United States | |
| 6 | New York City | 🇺🇸 United States | |
| 7 | Washington | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Slender Spreadwing sighting in Boston on a given day, based on 22 verified sightings from GBIF citizen-science data. It is the 465th most-seen of the 1200 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
June and August
In those months about 10% of wildlife watchers report a Slender Spreadwing in Boston on a given day, against under 5% in July and September–May, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Slender Spreadwing sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 7 cities where we can rate Slender Spreadwing sightings, Boston ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Toronto (Canada, under 5%).
GBIF citizen-science records
It is estimated from how often the Slender Spreadwing is recorded against all the insects logged in Boston (22 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
