Prociphilus tessellatus
In 3 days ~10% in a week ~20%
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 Toronto on a given day, based on 35 verified sightings from GBIF citizen-science data. It is the 464th most-seen of the 1689 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.
November
In that month about 10% of wildlife watchers report a Woolly Alder Aphid in Toronto on a given day, against under 5% in December to October, the lowest months.
2nd of 7
Of the 7 cities where we can rate Woolly Alder Aphid sightings, Toronto ranks 2nd at under 5%. The best odds are in Edmonton (Canada, about 10%).
GBIF citizen-science records
It is estimated from how often the Woolly Alder Aphid is recorded against all the insects logged in Toronto (35 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.
