Sphecomyia vittata
In 3 days ~10%
Sphecomyia vittata, the long-horned yellowjacket fly, is an uncommon species of syrphid fly observed throughout North America, concentrated in the eastern half of the continent. Hoverflies can remain nearly motionless in flight. The adults are also known as flower flies for they are commonly found on flowers, from which they get both energy-giving nectar and protein-rich pollen. The larvae have been found in sap runs and tree wounds. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Shenandoah National Park | 🇺🇸 United States |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report a Long-Horned Yellowjacket Fly sighting in Washington on a given day, based on 8 verified sightings from GBIF citizen-science data. It is the 1330th most-seen of the 1807 insects we can rate there. Over three days the chance rises to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Long-Horned Yellowjacket Fly in Washington on a given day, so our monthly data shows no clear season.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Long-Horned Yellowjacket Fly sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Washington, in our data
Washington is the only city on Wallace's Line with enough records to rate Long-Horned Yellowjacket Fly sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Syrphidae
The closest relatives of the Long-Horned Yellowjacket Fly that you can see in Washington (family Syrphidae, Hover Flies) are Eastern Calligrapher (about 10%), Margined Calligrapher (about 10%) and Transverse-Banded Flower Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Long-Horned Yellowjacket Fly is recorded against all the insects logged in Washington (8 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.
