Macrosiphum albifrons
In 3 days ~10%
Macrosiphum albifrons, the lupin aphid, is a species of large grey/ green aphid in the family Aphididae. It is a species native to North America which was first reported in the UK in 1981 where it now occurs widely. Infestations cause lupin plants to wilt and collapse. This may be because the aphid has no natural predators in the UK and populations can grow unchecked. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Liverpool | 🇬🇧 United Kingdom | |
| 2 | Portland | 🇺🇸 United States | |
| 3 | San Francisco | 🇺🇸 United States | |
| 4 | Los Angeles | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Lupine Aphid sighting in San Francisco on a given day, based on 21 verified sightings from GBIF citizen-science data. It is the 387th most-seen of the 737 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 Lupine Aphid in San Francisco on a given day, so our monthly data shows no clear season.
3rd of 4
Of the 4 cities where we can rate Lupine Aphid sightings, San Francisco ranks 3rd at under 5%. The best odds are in Liverpool (United Kingdom, about 10%) and Portland (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Lupine Aphid is recorded against all the insects logged in San Francisco (21 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.
