Phytomyza opacae
In 3 days ~10% in a week ~30%
Phytomyza opacae is a species of fly in the family Agromyzidae. Its host plants are Ilex myrtifolia, Ilex cassine, Ilex opaca, and Ilex amelanchier. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States | |
| 2 | Philadelphia | 🇺🇸 United States | |
| 3 | New York City | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Phytomyza opacae sighting in Great Smoky Mountains National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 513th most-seen of the 822 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
March, June, September and November
In those months about 10% of wildlife watchers report a Phytomyza opacae in Great Smoky Mountains National Park on a given day, against under 5% in April–May, July–August, October and December–February, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Phytomyza opacae sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Great Smoky Mountains National Park, in our data
Great Smoky Mountains National Park is the only park on Wallace's Line with enough records to rate Phytomyza opacae sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Phytomyza opacae is recorded against all the insects logged in Great Smoky Mountains National Park (8 verified sightings from 2019 to 2026), 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.
