Catoptria pinella
In 3 days ~20% in a week ~40%
Catoptria pinella is a species of moth of the family Crambidae. It is found in Europe, North Africa and across the Palearctic. The wingspan is 18–24 mm. The face has a short cone. Forewings ferruginous-ochreous; a shining white broadly dilating median streak from base to 4, cut in middle by a dark brown oblique bar, posterior portion edged with dark brown; second line obscurely brown towards costa; cilia shining brownish. Hindwings are light grey. The larva is dull reddish-grey; spots black, head and plate of 2 black.
The moth flies from July to August depending on the location. The larvae feed on various grasses. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wadden Sea National Park | 🇩🇪 Germany | |
| 2 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 3 | Cévennes National Park | 🇫🇷 France | |
| 4 | Pyrénées National Park | 🇫🇷 France | |
| 5 | Bavarian Forest National Park | 🇩🇪 Germany |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Helsinki | 🇫🇮 Finland | |
| 2 | Essen | 🇩🇪 Germany | |
| 3 | London | 🇬🇧 United Kingdom | |
| 4 | Copenhagen | 🇩🇰 Denmark | |
| 5 | Berlin | 🇩🇪 Germany |
With luck
About 10% of wildlife watchers report a Pearl Grass-Veneer sighting in Cévennes National Park on a given day, based on 15 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 493rd most-seen of the 996 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
June to August
In those months about 10% of wildlife watchers report a Pearl Grass-Veneer in Cévennes National Park on a given day, against under 5% in September to May, the lowest months. Those are among Cévennes National Park's driest months, with about 60 mm of rain a month against 260 mm in October.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Pearl Grass-Veneer sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
Among the best
Of the 5 parks where we can rate Pearl Grass-Veneer sightings, Cévennes National Park ranks 3rd at about 10%, level with the leaders once rounded. The best odds are in Wadden Sea National Park (Germany, about 10%) and Snowdonia National Park (United Kingdom, about 10%).
GBIF citizen-science records
It is estimated from how often the Pearl Grass-Veneer is recorded against all the insects logged in Cévennes National Park (15 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.
