Prociphilus tessellatus
In 3 days ~10%
Prociphilus tessellatus, known generally as the woolly alder aphid or maple blight aphid, is a species of aphid in the family Aphididae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Edmonton | 🇨🇦 Canada | |
| 2 | Toronto | 🇨🇦 Canada | |
| 3 | Boston | 🇺🇸 United States | |
| 4 | Washington | 🇺🇸 United States | |
| 5 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 6 | Chicago | 🇺🇸 United States | |
| 7 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Woolly Alder Aphid sighting in Chicago on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 814th most-seen of the 978 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Woolly Alder Aphid in Chicago on a given day, so our monthly data shows no clear season.
6th of 7
Of the 7 cities where we can rate Woolly Alder Aphid sightings, Chicago ranks 6th at under 5%. The best odds are in Edmonton (Canada, about 10%), Toronto (Canada, under 5%) and Boston (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Woolly Alder Aphid is recorded against all the insects logged in Chicago (6 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.
