Isochaetes beutenmuelleri
In 3 days ~10% in a week ~20%
Isochaetes beutenmuelleri, the spun glass slug moth, is a moth of the family Limacodidae. It is found in the United States from New York to Florida and west to Colorado and Texas. Their wingspan is 19–24 mm. Adults are on wing from June to August.
The larvae feed on oak and beech. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Baltimore | 🇺🇸 United States | |
| 2 | Washington | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Spun Glass Slug Moth sighting in Baltimore on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 546th most-seen of the 705 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.
July
In that month about 10% of wildlife watchers report a Spun Glass Slug Moth in Baltimore on a given day, against under 5% in August to June, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Spun Glass 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.
Yes
Of the 2 cities where we can rate Spun Glass Slug Moth sightings, Baltimore has the highest daily chance: under 5%. Next come Washington (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Spun Glass Slug Moth is recorded against all the insects logged in Baltimore (7 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.
