Acontia trabealis
In 3 days ~30% in a week ~50%
Emmelia trabealis, the spotted sulphur, is a moth of the family Noctuidae. The species was first described by Giovanni Antonio Scopoli his 1763 Entomologia Carniolica. The species is sometimes placed in the genus Acontia and Emmelia is considered as a subgenus of Acontia.
The spotted sulphur can be found in most of the Palearctic (Europe, North Africa, the Middle East and Russia to northern China and Japan). It was formerly resident in Great Britain, but has not been seen at any known breeding colonies since 25 June 1960 and is presumed extinct there.
This species prefers sandy soil, dry and warm areas, meadows and sunny slopes on which the bindweed occurs. The wingspan of Emmelia trabealis can reach 18–24 mm. The forewings show a very variable black drawings on a yellowish or dirty white background. The rear wings are reddish brown.
Eggs are green, elongated and cone shaped, with a flattened base and distinct longitudinal ribs. Caterpillars are reddish to greenish brown, with dark dorsal lines and a yellow side band, the head is relatively small and brown. Cocoons are red brown or green. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kiskunság National Park | 🇭🇺 Hungary | |
| 2 | Fertő-Hanság National Park | 🇭🇺 Hungary | |
| 3 | Cévennes National Park | 🇫🇷 France | |
| 4 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 5 | Pyrénées National Park | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Spotted Sulphur sighting in Vienna on a given day, based on 164 verified sightings from GBIF citizen-science data. It is the 80th most-seen of the 1406 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
June and August
In those months about 20% of wildlife watchers report a Spotted Sulphur in Vienna on a given day, against under 5% in October to April, the lowest months. Those are among Vienna's wettest months, with about 90 mm of rain a month against 40 mm in February.
Between 10 pm and 1 am
Across all the parks we cover, that three-hour window holds the most Spotted Sulphur sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is seen both by day and at night.
6th of 20
Of the 20 cities where we can rate Spotted Sulphur sightings, Vienna ranks 6th at about 10%. The best odds are in Turin (Italy, about 20%), Budapest (Hungary, about 10%) and Bucharest (Romania, about 10%).
GBIF citizen-science records
It is estimated from how often the Spotted Sulphur is recorded against all the insects logged in Vienna (164 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.
