Pyractomena borealis
In 3 days ~10%
Pyractomena borealis commonly known as the Spring tree-top flasher is a species of firefly in the beetle family Lampyridae. It is found in North America, where it has a very wide distribution, as it is known from Alberta east to the Maritime Provinces of Canada, and south to all US states east of the Mississippi River. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Congaree National Park | 🇺🇸 United States | |
| 2 | Great Smoky Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Philadelphia | 🇺🇸 United States | |
| 2 | Baltimore | 🇺🇸 United States | |
| 3 | Washington | 🇺🇸 United States | |
| 4 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Spring Treetop Flasher sighting in New York City on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 1094th most-seen of the 1623 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Spring Treetop Flasher in New York City 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 Spring Treetop Flasher sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 4 cities where we can rate Spring Treetop Flasher sightings, New York City ranks 4th at under 5%, level with the leaders once rounded. The best odds are in Philadelphia (United States, under 5%), Baltimore (United States, under 5%) and Washington (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Spring Treetop Flasher is recorded against all the insects logged in New York City (9 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.
