Idaea subsericeata
In 3 days ~20% in a week ~40%
Idaea subsericeata, the satin wave, is a moth of the family Geometridae. The species was first described by Adrian Hardy Haworth in 1809. It is found from central and southern Europe, North Africa, Asia Minor to Transcaspia.
The ground colour is white with strong silky gloss, the lines grey, seldom strongly expressed, on the other hand usually all present, thus numbering five on the forewing and four on the hindwing; the outermost line (distal shading of subterminal) the oftenest absent; all except the median are parallel with the distal margin, but slightly wavy; the median on the forewing is usually somewhat oblique, but occasionally almost parallel with the others; that of the hindwing runs straighter across the wing, instead of following the curve of the strongly convex distal margin. Cellspots and terminal line wanting or rarely the former present, minute; fringe usually with a series of minute black dots at the base, which are sometimes in part, more rarely entirely obsolete. Forewing beneath often with a smoky suffusion, either basally or all over; median and postmedian lines present, often well developed; a small discal dot present. Hindwing beneath white,... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France | |
| 2 | Pyrénées National Park | 🇫🇷 France | |
| 3 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 4 | Wadden Sea National Park | 🇩🇪 Germany |
With luck
About 10% of wildlife watchers report a Satin Wave sighting in Rotterdam [The Hague] on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 153rd most-seen of the 355 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.
May–June and August
In those months about 10% of wildlife watchers report a Satin Wave in Rotterdam [The Hague] on a given day, against under 5% in July and September–April, the lowest months.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Satin Wave 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.
2nd of 6
Of the 6 cities where we can rate Satin Wave sightings, Rotterdam [The Hague] ranks 2nd at about 10%. The best odds are in Porto (Portugal, about 20%).
Same genus: Idaea
The closest relatives of the Satin Wave that you can see in Rotterdam [The Hague] (genus Idaea) are Small Dusty Wave (about 10%), Single-Dotted Wave (about 10%) and Riband Wave (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Satin Wave is recorded against all the insects logged in Rotterdam [The Hague] (12 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.
