Enallagma vesperum
In 3 days ~10% in a week ~20%
Enallagma vesperum, the vesper bluet, is a species of narrow-winged damselfly in the family Coenagrionidae. It is found in southern Canada and central and eastern United States. The IUCN conservation status of Enallagma vesperum is "least concern", with no immediate threat to the species' survival. The
population is stable. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Vesper Bluet sighting in Boston on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 830th 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Vesper Bluet in Boston on a given day, so our monthly data shows no clear season.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Vesper Bluet sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 3 cities where we can rate Vesper Bluet sightings, Boston has the highest daily chance: under 5%. Next come Miami (United States, under 5%) and Toronto (Canada, under 5%).
GBIF citizen-science records
It is estimated from how often the Vesper Bluet is recorded against all the insects logged in Boston (8 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.
