Crocallis tusciaria
In 3 days ~10% in a week ~20%
Crocallis tusciaria, the smoky scalloped oak, is a species of moth of the family Geometridae. It is found from Morocco through southern Europe and Asia Minor to the Caucasus, northern Iran and Turkmenistan. The eastern range extends to the southern Ural.
The wingspan is 31–40 mm. Adults are on wing from August to October in one generation per year. The larvae feed on the leaves of various plants, including Prunus spinosa, Clematis vitalba, Crataegus, Frangula alnus and Berberis vulgaris. Larvae can be found from May to June. The species overwinters as an egg. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sierra de Guadarrama National Park | 🇪🇸 Spain |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Porto | 🇵🇹 Portugal |
Rare
Under 5% of wildlife watchers report a Crocallis tusciaria sighting in Porto on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 457th most-seen of the 498 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.
October and November
In those months about 10% of wildlife watchers report a Crocallis tusciaria in Porto on a given day, against under 5% in December to September, the lowest months. Those are among Porto's wettest months, with about 140 mm of rain a month against 15 mm in July.
Between midnight and 3 am
Across all the parks we cover, that three-hour window holds the most Crocallis tusciaria sightings with a recorded time, and about 8 in 10 of them come between 6 pm and 6 am: it is mostly seen at night.
Only Porto, in our data
Porto is the only city on Wallace's Line with enough records to rate Crocallis tusciaria sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Geometridae
The closest relatives of the Crocallis tusciaria that you can see in Porto (family Geometridae, Geometer Moths) are Double-Striped Pug (about 20%), Vestal (about 20%) and Pale Oak Beauty (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Crocallis tusciaria is recorded against all the insects logged in Porto (5 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.
