Alypia langtonii
In 3 days ~50% in a week ~80%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Glacier National Park | 🇺🇸 United States | |
| 2 | Sequoia and Kings Canyon National Parks | 🇺🇸 United States | |
| 3 | Grand Teton National Park | 🇺🇸 United States | |
| 4 | Rocky Mountain National Park | 🇺🇸 United States | |
| 5 | Banff National Park | 🇨🇦 Canada |
Possible
About 20% of wildlife watchers report a Langton's Forester sighting in Glacier National Park on a given day, based on 57 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 15th most-seen of the 147 insects we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
July
In that month about 30% of wildlife watchers report a Langton's Forester in Glacier National Park on a given day, against under 5% in January–May and October–November, the lowest months. That is one of Glacier National Park's driest months, with about 20 mm of rain against 80 mm in February.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Langton's Forester sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 5 parks where we can rate Langton's Forester sightings, Glacier National Park has the highest daily chance: about 20%. Next come Sequoia and Kings Canyon National Parks (United States, about 10%) and Grand Teton National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Langton's Forester is recorded against all the insects logged in Glacier National Park (57 verified sightings from 2019 to 2026), 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.
