Dinera ferina
In 3 days ~30% in a week ~50%
Dinera ferina (Fallen) is a species of fly in the family Tachinidae. In June 2018, the Bulletin of Insectology wrote that Dinera ferina was "confirmed to be a parasitoid of larvae of the two Italian Platycerus species, Platycerus caprea (De Geer) and Platycerus caraboides (L.) (Coleoptera Lucanidae)."
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| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Triglav National Park | 🇸🇮 Slovenia |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Dinera ferina sighting in Triglav National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 188th most-seen of the 260 insects we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
July
In that month about 20% of wildlife watchers report a Dinera ferina in Triglav National Park on a given day, against under 5% in September to May, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Dinera ferina sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Triglav National Park, in our data
Triglav National Park is the only park on Wallace's Line with enough records to rate Dinera ferina sightings: about 10% of wildlife watchers there report one on a given day.
Same order: Diptera
The closest relatives of the Dinera ferina that you can see in Triglav National Park (order Diptera, Flies) are Common Drone Fly (about 30%), Pellucid Hover Fly (about 30%) and Beech Gall Midge (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dinera ferina is recorded against all the insects logged in Triglav National Park (8 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.
