Cryptomyzus ribis
In 3 days ~10% in a week ~20%
Cryptomyzus ribis is a species of true bug found in Europe and described by the Swedish taxonomist, Carl Linnaeus in 1758. The larvae feed on the leaves of currant bushes (Ribes species), especially red currant, creating abnormal plant growths, known as galls. 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 Redcurrant Blister Aphid sighting in Vienna on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 760th 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.
April
In that month about 10% of wildlife watchers report a Redcurrant Blister Aphid in Vienna on a given day, against under 5% in May to March, the lowest months.
Among the best
Of the 3 cities where we can rate Redcurrant Blister Aphid sightings, Vienna 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 Redcurrant Blister Aphid is recorded against all the insects logged in Vienna (13 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.
