Phyllotreta vittula
In 3 days ~10% in a week ~20%
Phyllotreta vittula, commonly known as the barley flea beetle, is a species of flea beetle in the Chrysomelidae family that can be found across the Palearctic including North Africa and has been introduced into the United States. It is found on the margins of arable fields and roadside verges. This species of flea beetle is between 1.5-2.1mm and is black with yellow stripes on the elytra. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Saint Petersburg | 🇷🇺 Russia |
Rare
Under 5% of wildlife watchers report a Barley Flea-Beetle sighting in Saint Petersburg on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 377th most-seen of the 448 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 Barley Flea-Beetle in Saint Petersburg on a given day, so our monthly data shows no clear season.
Only Saint Petersburg, in our data
Saint Petersburg is the only city on Wallace's Line with enough records to rate Barley Flea-Beetle sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Barley Flea-Beetle is recorded against all the insects logged in Saint Petersburg (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.
