Saperda perforata
In 3 days ~10% in a week ~20%
Saperda perforata is a species of beetle in the family Cerambycidae. It was described by Pallas in 1773, originally under the genus Cerambyx. It has a wide distribution in Europe. It feeds on Populus nigra, Populus alba, and Populus tremula. It is preyed upon by the parasitoid wasp Xorides indicatorius.
S. perforata measures between 12 and 20 mm (0.47 and 0.79 in). 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 Saperda perforata sighting in Vienna on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 1090th 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 Saperda perforata in Vienna on a given day, so our monthly data shows no clear season.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Saperda perforata sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 2 cities where we can rate Saperda perforata sightings, Vienna has the highest daily chance: under 5%. Next come Moscow (Russia, under 5%).
GBIF citizen-science records
It is estimated from how often the Saperda perforata is recorded against all the insects logged in Vienna (7 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.
