Egira conspicillaris
In 3 days ~10% in a week ~20%
Egira conspicillaris, the silver cloud, is a moth of the family Noctuidae. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. It is found from the Iberian Peninsula to Russia. In the north it ranges to the Baltic Region and in the south to North Africa. It is also present in the Near East, up to the Caspian Sea.
The wingspan is 36–44 mm. Forewing pale lilac grey in lower half, becoming pale lilac brown in costal; markings usually much confused; inner line and median shade thick, brown; claviform stigma outlined with black; orbicular round, reniform large, both pale; outer line denoted by a row of black dashes on veins; marginal area beyond submarginal line darker; hindwing pearly white, slightly tinged with grey; the apex and veins brown; — ab. melaleuca View. has the forewing suffused with dark brown or black, except the inner area and a narrow praesubmarginal band, which are pearly grey or white; — in the ab. intermedia Tutt the outer costal half of wing is also pale brownish grey; both of these aberrations are commoner than the pale type form.
The hemispherical egg is stained with chalk white, but reddish yellow at the... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 2 | Cévennes National Park | 🇫🇷 France | |
| 3 | Pyrénées National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Silver Cloud sighting in Vienna on a given day, based on 29 verified sightings from GBIF citizen-science data. It is the 575th most-seen of the 1406 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.
April
In that month about 10% of wildlife watchers report a Silver Cloud in Vienna on a given day, against under 5% in May to March, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Silver Cloud sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Yes
Of the 3 cities where we can rate Silver Cloud sightings, Vienna has the highest daily chance: under 5%. Next come Prague (Czechia, under 5%) and Paris (France, under 5%).
Same family: Noctuidae
The closest relatives of the Silver Cloud that you can see in Vienna (family Noctuidae, Cutworm Moths and Allies) are Silver Υ (about 20%), Large Yellow Underwing (about 10%) and Cotton Bollworm Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Silver Cloud is recorded against all the insects logged in Vienna (29 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.
