Chrysops relictus
In 3 days ~10% in a week ~30%
Chrysops relictus, the twin-lobed deerfly, is a largish European and Asian deerfly of about 8–10.5 millimetres (0.31–0.41 in) length. The larvae feed upon organic matter in damp soils, and are termed hydrobionts in that they inhabit areas of high water content. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Wadden Sea National Park | 🇩🇪 Germany | |
| 2 | Pyrénées National Park | 🇫🇷 France |
Rare
Under 5% of wildlife watchers report a Twin-Lobed Deer Fly sighting in Kyiv on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 477th most-seen of the 753 insects we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
June and July
In those months about 10% of wildlife watchers report a Twin-Lobed Deer Fly in Kyiv on a given day, against under 5% in August to May, the lowest months.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Twin-Lobed Deer 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 5
Of the 5 cities where we can rate Twin-Lobed Deer Fly sightings, Kyiv ranks 2nd at under 5%. The best odds are in Amsterdam (Netherlands, about 10%).
Same order: Diptera
The closest relatives of the Twin-Lobed Deer Fly that you can see in Kyiv (order Diptera, Flies) are Black Banded Bee Fly (about 20%), Common Drone Fly (about 20%) and Marmalade Hover Fly (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Twin-Lobed Deer Fly is recorded against all the insects logged in Kyiv (9 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.
