Shivaphis celti
In 3 days ~20% in a week ~40%
Shivaphis celti, the Asian woolly hackberry aphid, also known as Shivaphis (Shivaphis) celti, is an aphid in the superfamily Aphidoidea in the order Hemiptera. It is a true bug and sucks sap from plants. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pretoria | 🇿🇦 South Africa | |
| 2 | Tel Aviv | 🇮🇱 Israel | |
| 3 | Johannesburg | 🇿🇦 South Africa | |
| 4 | Sacramento | 🇺🇸 United States | |
| 5 | Cape Town | 🇿🇦 South Africa | |
| 6 | Philadelphia | 🇺🇸 United States | |
| 7 | Dallas | 🇺🇸 United States | |
| 8 | New York City | 🇺🇸 United States | |
| 9 | San Antonio | 🇺🇸 United States | |
| 10 | Houston | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report an Asian Woolly Hackberry Aphid sighting in Pretoria on a given day, based on 12 verified sightings from GBIF citizen-science data. It is the 118th most-seen of the 274 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May and October–March
In those months about 10% of wildlife watchers report an Asian Woolly Hackberry Aphid in Pretoria on a given day, against under 5% in April and June–September, the lowest months.
Yes
Of the 15 cities where we can rate Asian Woolly Hackberry Aphid sightings, Pretoria has the highest daily chance: about 10%. Next come Tel Aviv (Israel, under 5%) and Johannesburg (South Africa, under 5%).
GBIF citizen-science records
It is estimated from how often the Asian Woolly Hackberry Aphid is recorded against all the insects logged in Pretoria (12 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.
