Pachypsylla celtidismamma
In 3 days ~20% in a week ~40%
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 Detroit on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 118th most-seen of the 268 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.
January
In that month about 20% of wildlife watchers report a Hackberry Nipplegall Psyllid in Detroit on a given day, against under 5% in February–May and November–December, 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.
Among the best
Of the 16 cities where we can rate Hackberry Nipplegall Psyllid sightings, Detroit ranks 5th at about 10%, level with the leaders once rounded. The best odds are in Minneapolis [Saint Paul] (United States, about 10%), Dallas (United States, about 10%) and Chicago (United States, about 10%).
Same order: Hemiptera
The closest relatives of the Hackberry Nipplegall Psyllid that you can see in Detroit (order Hemiptera, True Bugs, Hoppers, Aphids, and allies) are Spotted Lanternfly (about 20%), Red-Banded Leafhopper (about 20%) and Large Milkweed Bug (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Hackberry Nipplegall Psyllid is recorded against all the insects logged in Detroit (17 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.
