Trioza urticae
In 3 days ~10% in a week ~20%
Trioza urticae is a sap-sucking hemipteran bug in the family Triozidae which creates galls on the leaves of nettles (Urtica species). It was described by the Swedish biologist and physician, Carl Linnaeus in 1758. 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 Trioza urticae sighting in London on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 1219th most-seen of the 1504 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 Trioza urticae in London on a given day, so our monthly data shows no clear season.
3rd of 4
Of the 4 cities where we can rate Trioza urticae sightings, London ranks 3rd at under 5%. The best odds are in Berlin (Germany, about 10%) and Paris (France, under 5%).
GBIF citizen-science records
It is estimated from how often the Trioza urticae is recorded against all the insects logged in London (9 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.
