Colostygia aptata
In 3 days ~40% in a week ~70%
Colostygia aptata is a moth of the family Geometridae first described by Jacob Hübner in 1813. It is found in most of the Palearctic realm. The wingspan is 20–25 millimetres (0.79–0.98 in). Adults are on wing from July to August.
The larvae feed on Galium species. Larvae can be found from August to June. It overwinters in the larval stage. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mercantour National Park | 🇫🇷 France | |
| 2 | Vanoise National Park | 🇫🇷 France | |
| 3 | Hohe Tauern National Park | 🇦🇹 Austria | |
| 4 | Pyrénées National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Colostygia aptata sighting in Mercantour National Park on a given day, based on 24 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 168th most-seen of the 412 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Colostygia aptata in Mercantour National Park on a given day, against under 5% in September to May, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Colostygia aptata sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Yes
Of the 4 parks where we can rate Colostygia aptata sightings, Mercantour National Park has the highest daily chance: about 10%. Next come Vanoise National Park (France, about 10%) and Hohe Tauern National Park (Austria, about 10%).
GBIF citizen-science records
It is estimated from how often the Colostygia aptata is recorded against all the insects logged in Mercantour National Park (24 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.
