Phytomyza ilicicola
In 3 days ~10% in a week ~20%
Phytomyza ilicicola, the native holly leafminer, is a species of leaf miner fly in the family Agromyzidae. They are a pest of the American holly. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States | |
| 2 | New York City | 🇺🇸 United States | |
| 3 | Philadelphia | 🇺🇸 United States | |
| 4 | Baltimore | 🇺🇸 United States | |
| 5 | Boston | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an American Holly Leafminer sighting in Baltimore on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 620th most-seen of the 705 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.
February and November
In those months about 10% of wildlife watchers report an American Holly Leafminer in Baltimore on a given day, against under 5% in March–October and December–January, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most American Holly Leafminer sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 5
Of the 5 cities where we can rate American Holly Leafminer sightings, Baltimore ranks 4th at under 5%. The best odds are in Washington (United States, about 10%), New York City (United States, under 5%) and Philadelphia (United States, under 5%).
Same order: Diptera
The closest relatives of the American Holly Leafminer that you can see in Baltimore (order Diptera, Flies) are Tiger Bee Fly (about 20%), Common Picture-Winged Fly (about 10%) and Margined Calligrapher (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the American Holly Leafminer is recorded against all the insects logged in Baltimore (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.
