Condylostylus longicornis
In 3 days ~40% in a week ~70%
Condylostylus longicornis is a fly of the genus Condylostylus. It is widespread, natively ranging from the Southern United States through tropical South America and the Galápagos Islands. It has also been introduced to French Polynesia, Hawaii, Australia, China, India, Indonesia, Papua New Guinea, the Philippines, Sri Lanka, and the United Arab Emirates. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Ría Lagartos Biosphere Reserve | 🇲🇽 Mexico | |
| 2 | Everglades National Park | 🇺🇸 United States | |
| 3 | Galápagos Islands | 🇪🇨 Ecuador |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cairo | 🇪🇬 Egypt | |
| 2 | Tel Aviv | 🇮🇱 Israel | |
| 3 | Torreón | 🇲🇽 México | |
| 4 | Mesa | 🇺🇸 United States | |
| 5 | Dallas | 🇺🇸 United States | |
| 6 | Los Angeles | 🇺🇸 United States | |
| 7 | Miami | 🇺🇸 United States | |
| 8 | Houston | 🇺🇸 United States | |
| 9 | Sacramento | 🇺🇸 United States | |
| 10 | San Diego | 🇺🇸 United States |
With luck
About 10% of wildlife watchers report a Condylostylus longicornis sighting in Ría Lagartos Biosphere Reserve on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 60th most-seen of the 112 insects we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
September and November–December
In those months about 30% of wildlife watchers report a Condylostylus longicornis in Ría Lagartos Biosphere Reserve on a given day, against under 5% in January and March–August, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Condylostylus longicornis 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 3 parks where we can rate Condylostylus longicornis sightings, Ría Lagartos Biosphere Reserve has the highest daily chance: about 10%. Next come Everglades National Park (United States, about 10%) and Galápagos Islands (Ecuador, under 5%).
Same order: Diptera
The closest relatives of the Condylostylus longicornis that you can see in Ría Lagartos Biosphere Reserve (order Diptera, Flies) are Dioprosopa clavatus (about 20%), Black Soldier Fly (about 10%) and Physoconops connectens (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Condylostylus longicornis is recorded against all the insects logged in Ría Lagartos Biosphere Reserve (11 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.
