Eana argentana
In 3 days ~10% in a week ~20%
Eana argentana is a moth of the family Tortricidae. It is found in Great Britain, Spain, France, Luxembourg, Belgium, the Netherlands, Germany, Austria, Switzerland, Italy, the Czech Republic, Slovakia, Poland, Albania, Bosnia and Herzegovina, Slovenia, Hungary, Bulgaria, Romania, North Macedonia, Greece, Norway, Sweden, Finland, the Baltic region and Russia. It is also present in western North America, where it has been recorded from Alaska, Alberta, Arizona, British Columbia, California, Maine, Montana, New Mexico, Washington and Wyoming. The habitat consists of high-elevation open habitats.
The wingspan is 20–26 mm. Adults have uniform whitish forewings. The hindwings are light grey. Adults are on wing from July to August. The larvae feed on Gramineae species. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Vanoise National Park | 🇫🇷 France | |
| 2 | Mercantour National Park | 🇫🇷 France | |
| 3 | Pyrénées National Park | 🇫🇷 France |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Edmonton | 🇨🇦 Canada |
Rare
Under 5% of wildlife watchers report a Silver Shade sighting in Edmonton on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 273rd most-seen of the 390 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
June
In that month about 10% of wildlife watchers report a Silver Shade in Edmonton on a given day, against under 5% in July to May, the lowest months. That is one of Edmonton's wettest months, with about 85 mm of rain against 20 mm in February.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Silver Shade 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.
Only Edmonton, in our data
Edmonton is the only city on Wallace's Line with enough records to rate Silver Shade sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Silver Shade is recorded against all the insects logged in Edmonton (8 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.
