Dioryctria abietella
In 3 days ~10% in a week ~30%
Dioryctria abietella is a moth of the family Pyralidae. It is found in Europe. The wingspan is 27–33 mm.The forewings are fuscous, irrorated with whitish and dark fuscous; first and second lines whitish, dark-edged, waved, nearly parallel, hardly oblique; two darker shades rather before and beyond first line, not reaching costa; a small whitish discal spot, suffusedly darker-edged. Hindwings in male whitish-fuscous, in female light fuscous, darker terminally. Larva dark grey or reddish-brown; dorsal line double, pale; lateral and spiracular lines pale; head and plate of 2 dark brown: in shoots of Pinus sylvestris, not causing resinous exudation.
The moth flies in one generation from the end of May to September.[1] The caterpillars feed on pine and other conifers. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bavarian Forest National Park | 🇩🇪 Germany |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Dark Pine Knot-Horn sighting in Vienna on a given day, based on 27 verified sightings from GBIF citizen-science data. It is the 495th 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 30%, if each day is a fresh chance.
June and July
In those months about 10% of wildlife watchers report a Dark Pine Knot-Horn in Vienna on a given day, against under 5% in August to May, the lowest months. Those are among Vienna's wettest months, with about 90 mm of rain a month against 40 mm in February.
Between 9 pm and midnight
Across all the parks we cover, that three-hour window holds the most Dark Pine Knot-Horn sightings with a recorded time, and about 7 in 10 of them come between 6 pm and 6 am: it is seen both by day and at night.
2nd of 5
Of the 5 cities where we can rate Dark Pine Knot-Horn sightings, Vienna ranks 2nd at under 5%. The best odds are in Sofia (Bulgaria, about 10%).
Same family: Pyralidae
The closest relatives of the Dark Pine Knot-Horn that you can see in Vienna (family Pyralidae, Pyralid Snout Moths) are Meal Moth (about 10%), Indian-Meal Moth (about 10%) and Rosy-Striped Knot-Horn (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dark Pine Knot-Horn is recorded against all the insects logged in Vienna (27 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.
