Acrolophus arcanella
In 3 days ~10% in a week ~20%
Acrolophus arcanella (grass tubeworm moth) is a moth of the family Acrolophidae. It is found in eastern North America. The wingspan is about 25 mm. 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 | Dallas | 🇺🇸 United States | |
| 2 | Baltimore | 🇺🇸 United States | |
| 3 | Chicago | 🇺🇸 United States | |
| 4 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 5 | Philadelphia | 🇺🇸 United States | |
| 6 | Washington | 🇺🇸 United States | |
| 7 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an Arcane Grass Tubeworm Moth sighting in Philadelphia on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 432nd most-seen of the 632 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 an Arcane Grass Tubeworm Moth in Philadelphia on a given day, so our monthly data shows no clear season.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Arcane Grass Tubeworm Moth sightings with a recorded time, and about 9 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Among the best
Of the 7 cities where we can rate Arcane Grass Tubeworm Moth sightings, Philadelphia ranks 5th at under 5%, level with the leaders once rounded. The best odds are in Dallas (United States, under 5%), Baltimore (United States, under 5%) and Chicago (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Arcane Grass Tubeworm Moth is recorded against all the insects logged in Philadelphia (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.
