Isa textula
In 3 days ~10% in a week ~20%
Isa textula, the crowned slug moth or skiff moth is a moth of the family Limacodidae. It is found in North America from Minnesota, southern Ontario and Massachusetts to Florida, Texas, and Mississippi. The larvae feed on the leaves of various trees, including oak, cherry, maple, basswood, elm and beech.
Another moth, Prolimacodes badia, is also referred to by the common name skiff moth. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States | |
| 2 | Great Smoky Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States | |
| 2 | Orlando | 🇺🇸 United States | |
| 3 | Boston | 🇺🇸 United States | |
| 4 | Houston | 🇺🇸 United States | |
| 5 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Crowned Slug Moth sighting in Boston on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 695th 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.
October
In that month about 10% of wildlife watchers report a Crowned Slug Moth in Boston on a given day, against under 5% in November to September, the lowest months.
Between 8 and 11 pm
Across all the parks we cover, that three-hour window holds the most Crowned Slug Moth sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Among the best
Of the 5 cities where we can rate Crowned Slug Moth sightings, Boston ranks 3rd at under 5%, level with the leaders once rounded. The best odds are in Washington (United States, under 5%) and Orlando (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Crowned Slug Moth is recorded against all the insects logged in Boston (16 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.
