Macrosiphum euphorbiae
In 3 days ~10% in a week ~20%
Macrosiphum euphorbiae, the potato aphid, is a sap-sucking pest insect in the family Aphididae. It infests potatoes and a number of other commercially important crops. Macrosiphum euphorbiae originated in North America but it has spread to the temperate parts of Europe and Asia and is found in all areas in which potatoes are grown.
The wingless female potato aphid is green or occasionally pink, often with a darker dorsal stripe. It has a pear-shaped body reaching about four millimetres long. The antennae are dark at the joints between the segments and are longer than the body. They are set on outward facing tubercles. The legs are longer than in other aphids, pale green but darker at the apices. The siphunculi are pale coloured, cylindrical with dark tips and operculi, and are about one third the length of the body. The tail is sword-shaped and bears 6 to 12 hairs and is much shorter than the siphunculi. The winged female has a uniform darker coloured body and appendages and has a green abdomen. The nymphs are like miniature versions of the adults and go through several moults in the course of about ten days.
The green biotype is most often found... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Seattle | 🇺🇸 United States | |
| 2 | Los Angeles | 🇺🇸 United States | |
| 3 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Potato Aphid sighting in Seattle on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 380th most-seen of the 428 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 Potato Aphid in Seattle on a given day, so our monthly data shows no clear season.
Yes
Of the 3 cities where we can rate Potato Aphid sightings, Seattle has the highest daily chance: under 5%. Next come Los Angeles (United States, under 5%) and New York City (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Potato Aphid is recorded against all the insects logged in Seattle (5 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.
