Ocyptamus fuscipennis
In 3 days ~20% in a week ~30%
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 Houston on a given day, based on 119 verified sightings from GBIF citizen-science data. It is the 141st most-seen of the 1057 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
February, June–October and December
In those months about 10% of wildlife watchers report a Dusky-Winged Hover Fly in Houston on a given day, against under 5% in January, March–May and November, 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 12 cities where we can rate Dusky-Winged Hover Fly sightings, Houston has the highest daily chance: about 10%. Next come Washington (United States, under 5%) and Baltimore (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Dusky-Winged Hover Fly is recorded against all the insects logged in Houston (119 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.
