Palthis angulalis
In 3 days ~10% in a week ~30%
Palthis angulalis, the dark-spotted palthis, is a moth of the family Erebidae. The species was first described by Jacob Hübner in 1796. It is found from Newfoundland west to coastal British Columbia, south to Florida and Texas.
The wingspan is 20–26 mm. Adults are on wing from May to August in Alberta. There are two generations in much of the eastern part of its range, three or more generations from Missouri southward. The larvae feed on various plants, including forbs, woody shrubs and trees (alder, aster, basswood, birch, chestnut, fir, sweetgale, goldenrod, ninebark, rhododendron, scrub oak and spruce). Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 2 | Shenandoah National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Baltimore | 🇺🇸 United States | |
| 2 | Washington | 🇺🇸 United States | |
| 3 | Boston | 🇺🇸 United States | |
| 4 | Detroit | 🇺🇸 United States | |
| 5 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 6 | Montreal | 🇨🇦 Canada | |
| 7 | Edmonton | 🇨🇦 Canada | |
| 8 | Toronto | 🇨🇦 Canada | |
| 9 | Philadelphia | 🇺🇸 United States | |
| 10 | Chicago | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Dark-Spotted Palthis Moth sighting in Detroit on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 216th most-seen of the 268 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.
May and August
In those months about 10% of wildlife watchers report a Dark-Spotted Palthis Moth in Detroit on a given day, against under 5% in June–July and September–April, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Dark-Spotted Palthis Moth sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
4th of 12
Of the 12 cities where we can rate Dark-Spotted Palthis Moth sightings, Detroit ranks 4th at under 5%. The best odds are in Baltimore (United States, about 10%), Washington (United States, about 10%) and Boston (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Dark-Spotted Palthis Moth is recorded against all the insects logged in Detroit (6 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.
