Dexia rustica
In 3 days ~10% in a week ~20%
Dexia rustica is a species of fly in the family Tachinidae. British Isles, Czech Republic, Hungary, Latvia, Moldova, Poland, Romania, Slovakia, Ukraine, Denmark, Finland, Sweden, Albania, Bosnia and Herzegovina, Bulgaria, Croatia, Greece, Italy, Portugal, Serbia, Slovenia, Spain, Turkey, Austria, Belgium, France, Germany, Netherlands, Switzerland, Iran, Israel, Mongolia, Russia, Transcaucasia.
These tachinids usually inhabit hedge rows and flowery environments. Dexia rustica can reach a body length of 8.4–12.7 millimetres (0.33–0.50 in) and a wingspan of 16–24 mm. These small tachinids have generally a black thorax, with grayish yellow pruinosity. Four longitudinal black vittae appear on dorsum, Abdomen appears greyish-brown or reddish, with a darker longitudinal dorsal marking, more or less evident. It is cylindric-conic, with two setae among each segment. Probocis is short and membranous. Females usually are darker than males.
Wings are hyaline, with a reddish yellow tegula and a dark brown basicosta. Legs are reddish yellow. Adults can be found from June to August, feeding on nectar and pollen, especially of Heracleum... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Pyrénées National Park | 🇫🇷 France |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Dexia rustica sighting in Berlin on a given day, based on 11 verified sightings from GBIF citizen-science data. It is the 593rd most-seen of the 1065 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.
August and November
In those months about 10% of wildlife watchers report a Dexia rustica in Berlin on a given day, against under 5% in September–October and December–July, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Dexia rustica sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 cities where we can rate Dexia rustica sightings, Berlin ranks 2nd at under 5%. The best odds are in Kyiv (Ukraine, about 10%).
Same family: Tachinidae
The closest relatives of the Dexia rustica that you can see in Berlin (family Tachinidae, Tachinid Flies) are Common Tachinid (about 10%) and Cylindromyia bicolor (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dexia rustica is recorded against all the insects logged in Berlin (11 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.
