Euxoa obelisca
In 3 days ~10% in a week ~20%
Euxoa obelisca, the square-spot dart, is a moth of the family Noctuidae. It is found in the Palearctic realm (Europe, Central Asia, North Africa Asia minor). Forewing purplish brown; costa pale to outer line: cell dark brown; stigmata large, greyish ochreous: the claviform dark; hindwing in male white, with narrow grey shade along margin, in female more or less grey-tinged throughout.- in ab. fictilis Hbn. the forewing is more variegated, the submarginal line preceded by a row of distinct black teeth; - ab. ruris Hbn., larger than typical, reddish grey or reddish brown, with or without the pale costa: stigmata large and pale: - ab. villiersii Guen. is also larger than typical; forewing ochreous grey with costa and both stigmata whitish, darker in the female; — ab. plectoides Guen. the same size as type, forewing with more acute apex, deep shining violet brown, with traces of subterminal only: costa and stigmata (which are small) pale testaceous; the orbicular somewhat angulated, the reniform constricted in middle: claviform obsolete: the cell deep black; hindwing very dark; described from a female only from Lapland; omitted by Staudinger, but... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Prague | 🇨🇿 Czechia |
Rare
Under 5% of wildlife watchers report a Square-Spot Dart sighting in Prague on a given day, based on 9 verified sightings from GBIF citizen-science data. It is the 543rd most-seen of the 724 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 September
In those months about 10% of wildlife watchers report a Square-Spot Dart in Prague on a given day, against under 5% in October to July, the lowest months.
Only Prague, in our data
Prague is the only city on Wallace's Line with enough records to rate Square-Spot Dart sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Noctuidae
The closest relatives of the Square-Spot Dart that you can see in Prague (family Noctuidae, Cutworm Moths and Allies) are Silver Υ (about 10%), Large Yellow Underwing (about 10%) and Knot Grass Moth (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Square-Spot Dart is recorded against all the insects logged in Prague (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.
