Scopula virgulata
In 3 days ~10% in a week ~20%
Scopula virgulata, the streaked wave, is a moth of the family Geometridae. The species was first described by Denis & Ignaz Schiffermüller in 1775. It is found from most of Europe to central Asia and northern Mongolia. The wingspan is 20–22 millimetres (0.79–0.87 in). Adults are on wing from late July to August in one generation per year.
The larvae feed on Carex and Inula species. Larvae can be found from August to June. It overwinters in the larval stage. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Streaked Wave sighting in Vienna on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 1286th 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.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Streaked Wave in Vienna on a given day, so our monthly data shows no clear season.
Among the best
Of the 2 cities where we can rate Streaked Wave sightings, Vienna ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Kyiv (Ukraine, under 5%).
GBIF citizen-science records
It is estimated from how often the Streaked Wave is recorded against all the insects logged in Vienna (6 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.
