Pachypsylla venusta
In 3 days ~10% in a week ~20%
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Zion National Park | 🇺🇸 United States | |
| 2 | Shenandoah National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Dallas | 🇺🇸 United States | |
| 2 | Austin | 🇺🇸 United States | |
| 3 | San Antonio | 🇺🇸 United States | |
| 4 | Houston | 🇺🇸 United States | |
| 5 | Washington | 🇺🇸 United States | |
| 6 | Chicago | 🇺🇸 United States | |
| 7 | New York City | 🇺🇸 United States | |
| 8 | Philadelphia | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Hackberry Petiole Gall Psyllid sighting in Chicago on a given day, based on 46 verified sightings from GBIF citizen-science data. It is the 261st most-seen of the 978 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.
January–March and November
In those months about 10% of wildlife watchers report a Hackberry Petiole Gall Psyllid in Chicago on a given day, against under 5% in April–October and December, the lowest months.
Between 4 and 7 pm
Across all the parks we cover, that three-hour window holds the most Hackberry Petiole Gall Psyllid sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
6th of 8
Of the 8 cities where we can rate Hackberry Petiole Gall Psyllid sightings, Chicago ranks 6th at under 5%. The best odds are in Dallas (United States, about 10%), Austin (United States, about 10%) and San Antonio (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Hackberry Petiole Gall Psyllid is recorded against all the insects logged in Chicago (46 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.
