Uroleucon obscuricaudatum
In 3 days ~10% in a week ~20%
Uroleucon obscuricaudatum is a species of aphid in the family Aphididae. It can be found in North America and feeds on Heliopsis helianthoides. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Boston | 🇺🇸 United States | |
| 2 | Montreal | 🇨🇦 Canada | |
| 3 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Dusky-Tailed Sunflower Aphid sighting in Montreal on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 749th most-seen of the 926 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 Dusky-Tailed Sunflower Aphid in Montreal on a given day, so our monthly data shows no clear season.
Among the best
Of the 3 cities where we can rate Dusky-Tailed Sunflower Aphid sightings, Montreal ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Boston (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Dusky-Tailed Sunflower Aphid is recorded against all the insects logged in Montreal (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.
