Toxomerus boscii
In 3 days ~10% in a week ~30%
Toxomerus boscii is a species of syrphid fly in the family Syrphidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Cypress National Preserve | 🇺🇸 United States | |
| 2 | Great Smoky Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Orlando | 🇺🇸 United States | |
| 2 | Houston | 🇺🇸 United States | |
| 3 | Miami | 🇺🇸 United States | |
| 4 | Washington | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Thin-Lined Calligrapher sighting in Great Smoky Mountains National Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 379th 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.
July to October
In those months about 10% of wildlife watchers report a Thin-Lined Calligrapher in Great Smoky Mountains National Park on a given day, against under 5% in November to June, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Thin-Lined Calligrapher sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 2 parks where we can rate Thin-Lined Calligrapher sightings, Great Smoky Mountains National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Big Cypress National Preserve (United States, about 10%).
Same genus: Toxomerus
The closest relatives of the Thin-Lined Calligrapher that you can see in Great Smoky Mountains National Park (genus Toxomerus, Calligrapher Flies) are Eastern Calligrapher (about 20%), Margined Calligrapher (about 10%) and Maize Calligrapher (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Thin-Lined Calligrapher is recorded against all the insects logged in Great Smoky Mountains National Park (11 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.
