Cnephasia stephensiana
In 3 days ~10% in a week ~30%
Cnephasia stephensiana, the grey tortrix, is a species of moth of the family Tortricidae. It is found in the Palearctic realm, and has also been recorded from Canada. The wingspan is 18–23 mm. The moth has grey-variegated wings. It is quite variable in colour and some individuals may be contrastingly patterned. The forewing is rounded and light greyish with three, more or less distinct, irregular, darker transverse bands. The hind wing is pale greyish-brown. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Gray Tortrix sighting in Bavarian Forest National Park on a given day, based on 7 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 822nd most-seen of the 1115 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 June
In those months about 10% of wildlife watchers report a Gray Tortrix in Bavarian Forest National Park on a given day, against under 5% in July to April, the lowest months.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Gray Tortrix sightings with a recorded time, and nearly all of them come between 6 pm and 6 am: it is mostly seen at night.
Only Bavarian Forest National Park, in our data
Bavarian Forest National Park is the only park on Wallace's Line with enough records to rate Gray Tortrix sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Tortricidae
The closest relatives of the Gray Tortrix that you can see in Bavarian Forest National Park (family Tortricidae, Tortricid Leafroller Moths) are Common Marble (about 10%), Arched Marble (about 10%) and Barred Fruit-Tree Tortrix (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Gray Tortrix is recorded against all the insects logged in Bavarian Forest National Park (7 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.
