Ocyptamus fuscipennis
In 3 days ~40% in a week ~70%
Ocyptamus fuscipennis is a species of syrphid fly in the family Syrphidae. This fly can be found throughout North America, as well as in Cuba. In Puerto Rico, this species in its larval stage is an predator of autumn cohorts of Toxoptera citricida. Adult flies are known to visit Xyris tennesseensis flowers. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States | |
| 2 | Great Smoky Mountains National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Houston | 🇺🇸 United States | |
| 2 | Washington | 🇺🇸 United States | |
| 3 | Baltimore | 🇺🇸 United States | |
| 4 | Philadelphia | 🇺🇸 United States | |
| 5 | Miami | 🇺🇸 United States | |
| 6 | New York City | 🇺🇸 United States | |
| 7 | Orlando | 🇺🇸 United States | |
| 8 | Dallas | 🇺🇸 United States | |
| 9 | Austin | 🇺🇸 United States | |
| 10 | Chicago | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Dusky-Winged Hover Fly sighting in Shenandoah National Park on a given day, based on 63 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 72nd most-seen of the 723 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
August
In that month about 30% of wildlife watchers report a Dusky-Winged Hover Fly in Shenandoah National Park on a given day, against under 5% in November to June, the lowest months.
Between 1 and 4 pm
Across all the parks we cover, that three-hour window holds the most Dusky-Winged Hover Fly sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Dusky-Winged Hover Fly sightings, Shenandoah National Park has the highest daily chance: about 10%. Next come Great Smoky Mountains National Park (United States, about 10%).
GBIF citizen-science records
It is estimated from how often the Dusky-Winged Hover Fly is recorded against all the insects logged in Shenandoah National Park (63 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.
