Trypetoptera punctulata
In 3 days ~10% in a week ~20%
Trypetoptera punctulata is a species of fly in the family Sciomyzidae. It is found in the Palearctic. Unlike most Sciomyzids, it is found in dry habitats, especially calcareous woodlands and also on grassland and along the edges of streams. The larva preys on Helicidae. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cévennes National Park | 🇫🇷 France | |
| 2 | Bavarian Forest National Park | 🇩🇪 Germany | |
| 3 | Wadden Sea National Park | 🇩🇪 Germany |
Rare
Under 5% of wildlife watchers report a Spotted Marsh Fly sighting in Vienna on a given day, based on 19 verified sightings from GBIF citizen-science data. It is the 599th most-seen of the 1406 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.
September
In that month about 10% of wildlife watchers report a Spotted Marsh Fly in Vienna on a given day, against under 5% in October to August, the lowest months.
Between 3 and 6 pm
Across all the parks we cover, that three-hour window holds the most Spotted Marsh Fly sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Among the best
Of the 4 cities where we can rate Spotted Marsh Fly sightings, Vienna ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Paris (France, under 5%).
GBIF citizen-science records
It is estimated from how often the Spotted Marsh Fly is recorded against all the insects logged in Vienna (19 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.
