Pachypsylla celtidismamma
In 3 days ~30% in a week ~60%
Pachypsylla celtidismamma, known generally as the hackberry nipplegall maker or hackberry psylla, is a species of plant-parasitic hemipteran in the family Aphalaridae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Minneapolis [Saint Paul] | 🇺🇸 United States | |
| 2 | Dallas | 🇺🇸 United States | |
| 3 | Chicago | 🇺🇸 United States | |
| 4 | Montreal | 🇨🇦 Canada | |
| 5 | Detroit | 🇺🇸 United States | |
| 6 | Boston | 🇺🇸 United States | |
| 7 | Denver | 🇺🇸 United States | |
| 8 | New York City | 🇺🇸 United States | |
| 9 | Toronto | 🇨🇦 Canada | |
| 10 | Philadelphia | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Hackberry Nipplegall Psyllid sighting in Minneapolis [Saint Paul] on a given day, based on 256 verified sightings from GBIF citizen-science data. It is the 36th most-seen of the 672 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
September to November
In those months about 20% of wildlife watchers report a Hackberry Nipplegall Psyllid in Minneapolis [Saint Paul] on a given day, against under 5% in February and March, the lowest months.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Hackberry Nipplegall Psyllid sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 16 cities where we can rate Hackberry Nipplegall Psyllid sightings, Minneapolis [Saint Paul] has the highest daily chance: about 10%. Next come Dallas (United States, about 10%) and Chicago (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Hackberry Nipplegall Psyllid is recorded against all the insects logged in Minneapolis [Saint Paul] (256 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.
