Chrysoteuchia culmella
In 3 days ~10% in a week ~30%
Chrysoteuchia culmella, the garden grass-veneer, is a species of moth of the family Crambidae. It was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. It is found in Europe. The wingspan is 18–24 mm.
The forewings are brown; a whitish median streak, ending in branches along veins 2-5, often separated by dark fuscous scales; dorsal 2/3 often wholly suffused with whitish-ochreous; a terminal series of black dots; cilia metallic. Hindwings are rather dark grey. The larva is pale pinkish-ochreous; spots brown; head and plate of 2 brown, darker- marked. See also Parsons et al.
The moth flies from June to July depending on the location. The larvae feed on various grasses. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 2 | Wadden Sea National Park | 🇩🇪 Germany | |
| 3 | Tatra National Park | 🇸🇰 Slovakia | |
| 4 | Snowdonia National Park | 🇬🇧 United Kingdom | |
| 5 | Mercantour National Park | 🇫🇷 France | |
| 6 | Cairngorms National Park | 🇬🇧 United Kingdom | |
| 7 | Pyrénées National Park | 🇫🇷 France | |
| 8 | Cévennes National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | London | 🇬🇧 United Kingdom | |
| 3 | Birmingham | 🇬🇧 United Kingdom | |
| 4 | Manchester | 🇬🇧 United Kingdom | |
| 5 | Helsinki | 🇫🇮 Finland | |
| 6 | Kharkiv | 🇺🇦 Ukraine | |
| 7 | Warsaw | 🇵🇱 Poland | |
| 8 | Essen | 🇩🇪 Germany | |
| 9 | Rotterdam [The Hague] | 🇳🇱 Netherlands | |
| 10 | Novosibirsk | 🇷🇺 Russia |
With luck
About 10% of wildlife watchers report a Garden Grass-Veneer sighting in Amsterdam on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 170th most-seen of the 234 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.
June to August
In those months about 10% of wildlife watchers report a Garden Grass-Veneer in Amsterdam on a given day, against under 5% in September to May, the lowest months.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Garden Grass-Veneer sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
25th of 30
Of the 30 cities where we can rate Garden Grass-Veneer sightings, Amsterdam ranks 25th at about 10%. The best odds are in Liverpool (United Kingdom, about 30%), London (United Kingdom, about 20%) and Birmingham (United Kingdom, about 10%).
Same family: Crambidae
The closest relatives of the Garden Grass-Veneer that you can see in Amsterdam (family Crambidae, Crambid Snout Moths) are Box Tree Moth (about 10%), Mint Moth (about 10%) and Small Magpie (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Garden Grass-Veneer is recorded against all the insects logged in Amsterdam (7 verified sightings), 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.
