Copestylum vesicularium
In 3 days ~10% in a week ~20%
Copestylum vesicularium, the iridescent bromeliad fly, is a species of syrphid fly in the family Syrphidae. This species is widely distributed on the eastern half of North America. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Great Smoky Mountains National Park | 🇺🇸 United States | |
| 2 | Shenandoah National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Washington | 🇺🇸 United States | |
| 2 | Houston | 🇺🇸 United States |
Rare
Under 5% of wildlife watchers report an Iridescent Bromeliad Fly sighting in Washington on a given day, based on 30 verified sightings from GBIF citizen-science data. It is the 617th most-seen of the 1807 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report an Iridescent Bromeliad Fly in Washington on a given day, so our monthly data shows no clear season.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Iridescent Bromeliad Fly sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Yes
Of the 2 cities where we can rate Iridescent Bromeliad Fly sightings, Washington has the highest daily chance: under 5%. Next come Houston (United States, under 5%).
GBIF citizen-science records
It is estimated from how often the Iridescent Bromeliad Fly is recorded against all the insects logged in Washington (30 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.
