Bibio femoratus
In 3 days ~10% in a week ~30%
Bibio femoratus, also known as the March fly or lovebug, is a species of fly in the family Bibionidae. It was first described by the German entomologist Christian Rudolph Wilhelm Wiedemann in 1820.Bibio femoratus is one of at least 90 types of March flies, which occur in the United States and Canada. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Philadelphia | 🇺🇸 United States | |
| 3 | Washington | 🇺🇸 United States | |
| 4 | New York City | 🇺🇸 United States | |
| 5 | Montreal | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Lovebug sighting in Boston on a given day, based on 49 verified sightings from GBIF citizen-science data. It is the 260th 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 30%, if each day is a fresh chance.
April and May
In those months about 10% of wildlife watchers report a Lovebug in Boston on a given day, against under 5% in June to March, the lowest months.
Yes
Of the 5 cities where we can rate Lovebug sightings, Boston has the highest daily chance: under 5%. Next come Philadelphia (United States, under 5%) and Washington (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Lovebug is recorded against all the insects logged in Boston (49 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.
