Woolly Alder Aphid

Woolly Alder Aphid

Prociphilus tessellatus

Daily sighting probability <5% · Rare
at Minneapolis [Saint Paul]

In 3 days ~10% in a week ~20%

6 Verified sightings at Minneapolis [Saint Paul]
February Best month

About the Woolly Alder Aphid

Prociphilus tessellatus, known generally as the woolly alder aphid or maple blight aphid, is a species of aphid in the family Aphididae. Wikipedia →

Global Distribution

Parks Where Found

# Park Country Daily sighting probability

More parks will be added in future updates.

Cities Where Found

# City Country Daily sighting probability
1 Edmonton 🇨🇦 Canada
~10%
2 Toronto 🇨🇦 Canada
<5%
3 Boston 🇺🇸 United States
<5%
4 Washington 🇺🇸 United States
<5%
5 Minneapolis [Saint Paul] 🇺🇸 United States
<5%
6 Chicago 🇺🇸 United States
<5%
7 New York City 🇺🇸 United States
<5%

Before you go

What are the chances of seeing a Woolly Alder Aphid in Minneapolis [Saint Paul]?

Rare

Under 5% of wildlife watchers report a Woolly Alder Aphid sighting in Minneapolis [Saint Paul] on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 546th most-seen of the 672 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.

When is the best time to see a Woolly Alder Aphid in Minneapolis [Saint Paul]?

February

In that month about 10% of wildlife watchers report a Woolly Alder Aphid in Minneapolis [Saint Paul] on a given day, against under 5% in March to January, the lowest months. That is one of Minneapolis [Saint Paul]'s driest months, with about 25 mm of rain against 130 mm in June.

Is Minneapolis [Saint Paul] the best place to see a Woolly Alder Aphid?

5th of 7

Of the 7 cities where we can rate Woolly Alder Aphid sightings, Minneapolis [Saint Paul] ranks 5th at under 5%. The best odds are in Edmonton (Canada, about 10%), Toronto (Canada, under 5%) and Boston (United States, under 5%).

Where does the Woolly Alder Aphid sighting chance come from?

GBIF citizen-science records

It is estimated from how often the Woolly Alder Aphid is recorded against all the insects logged in Minneapolis [Saint Paul] (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.

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