Chrysopilus thoracicus
In 3 days ~20% in a week ~40%
Chrysopilus thoracicus, the golden-backed snipe fly, is a species of snipe fly in the family Rhagionidae. It is usually found in woodland areas of the eastern part of North America. 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 | Washington | 🇺🇸 United States | |
| 2 | Baltimore | 🇺🇸 United States | |
| 3 | Detroit | 🇺🇸 United States | |
| 4 | Toronto | 🇨🇦 Canada | |
| 5 | Philadelphia | 🇺🇸 United States | |
| 6 | New York City | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Golden-Backed Snipe Fly sighting in Great Smoky Mountains National Park on a given day, based on 20 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 250th most-seen of the 822 insects we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
May
In that month about 20% of wildlife watchers report a Golden-Backed Snipe Fly in Great Smoky Mountains National Park on a given day, against under 5% in June to April, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Golden-Backed Snipe Fly sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Golden-Backed Snipe Fly sightings, Great Smoky Mountains National Park ranks 2nd at about 10%. The best odds are in Shenandoah National Park (United States, about 20%).
Same genus: Chrysopilus
The closest relatives of the Golden-Backed Snipe Fly that you can see in Great Smoky Mountains National Park (genus Chrysopilus) are Chrysopilus connexus (about 10%), Quadrate Snipe Fly (about 10%) and Chrysopilus davisi (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Golden-Backed Snipe Fly is recorded against all the insects logged in Great Smoky Mountains National Park (20 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.
