Phyllonorycter joannisi
In 3 days ~10% in a week ~20%
Phyllonorycter joannisi is a moth of the family Gracillariidae. It is found in most of Europe (except Ireland, the Iberian Peninsula and the Balkan Peninsula). The wingspan is 6.5–9 mm. Adults are on wing in May and August in two generations.
The larvae feed on Norway maple (Acer platanoides), mining the leaves of their host plant. 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 White-Bodied Midget sighting in Helsinki on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 553rd most-seen of the 838 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.
August to October
In those months about 10% of wildlife watchers report a White-Bodied Midget in Helsinki on a given day, against under 5% in November to July, the lowest months.
Among the best
Of the 2 cities where we can rate White-Bodied Midget sightings, Helsinki ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Berlin (Germany, under 5%).
GBIF citizen-science records
It is estimated from how often the White-Bodied Midget is recorded against all the insects logged in Helsinki (8 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.
