Plagioneurus univittatus
In 3 days ~20% in a week ~30%
Plagioneurus is a genus of long-legged flies in the family Dolichopodidae. It contains only one species, Plagioneurus univittatus, and is the only member of the subfamily Plagioneurinae. The range of P. univittatus spans from the Eastern United States south to South America.
The genus name is derived from the Ancient Greek words πλάγιος (plágios, 'oblique') and νεῦρον (neûron, 'nerve'), referring to the unusual angle of the last part of the medial wing vein M, which converges with radial vein R4+5.
In the adults, the thorax is a metallic green, with a strong black stripe in the center, and the abdomen is black with white pruinose posterior bands. The wings are hyaline. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Big Cypress National Preserve | 🇺🇸 United States | |
| 2 | Everglades National Park | 🇺🇸 United States |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Miami | 🇺🇸 United States | |
| 2 | Chicago | 🇺🇸 United States | |
| 3 | New York City | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Plagioneurus univittatus sighting in Everglades National Park on a given day, based on 15 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 213th most-seen of the 496 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.
March, June and November–January
In those months about 10% of wildlife watchers report a Plagioneurus univittatus in Everglades National Park on a given day, against under 5% in February, April–May and July–October, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Plagioneurus univittatus sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 2 parks where we can rate Plagioneurus univittatus sightings, Everglades National Park ranks 2nd at about 10%, level with the leaders once rounded. The best odds are in Big Cypress National Preserve (United States, about 10%).
Same family: Dolichopodidae
The closest relatives of the Plagioneurus univittatus that you can see in Everglades National Park (family Dolichopodidae, Long-legged Flies) are Condylostylus pruinosus (about 10%), Condylostylus longicornis (about 10%) and Condylostylus graenicheri (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Plagioneurus univittatus is recorded against all the insects logged in Everglades National Park (15 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.
