Colostygia aptata
In 3 days ~30% in a week ~60%
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 Vanoise National Park on a given day, based on 26 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 168th most-seen of the 308 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Colostygia aptata in Vanoise National Park on a given day, against under 5% in September to June, 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.
Among the best
Of the 4 parks where we can rate Colostygia aptata sightings, Vanoise National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Mercantour National Park (France, about 10%).
Same family: Geometridae
The closest relatives of the Colostygia aptata that you can see in Vanoise National Park (family Geometridae, Geometer Moths) are Common Heath (about 20%), Psodos quadrifaria (about 20%) and Latticed Heath (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Colostygia aptata is recorded against all the insects logged in Vanoise National Park (26 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.
