Pieris bryoniae
In 3 days ~60% in a week ~90%
Pieris bryoniae, the dark-veined white or mountain green-veined white, is a Palearctic butterfly of the family Pieridae. It has variously been considered to be a full species, a subspecies of Pieris napi or a superspecies complex.
Seitz-bryoniae (21c), which inhabits the Alps, Northern Scandinavia and the mountains of Asia Minor; the male of the latter is rather more narrow-winged than napi-males, not bearing any markings on the forewing above except the blackish apical and basal areas; the female has a yellowish ground-colour, which is however more or less suppressed by the great extent of the dark scaling situated along the veins. Among the females there occur specimens in which the discal spots and the vein-streaks of the forewing are strongly obsolescent, there being consequently no prominent marking; we name this form ab. obsoleta nov.;
individuals in which the yellowish ground-colour, especially on the forewing, is almost entirely suppressed by the greater extension of the dark scaling may be named ab. concolor nov..The form kamtschadalis Bang-Haas i. 1., from Kamchatka, is in the female somewhat paler than bryoniaeand the discal spots of... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Triglav National Park | 🇸🇮 Slovenia | |
| 2 | Hohe Tauern National Park | 🇦🇹 Austria | |
| 3 | Mercantour National Park | 🇫🇷 France | |
| 4 | Vanoise National Park | 🇫🇷 France |
Possible
About 30% of wildlife watchers report a Dark-Veined White sighting in Triglav National Park on a given day, based on 40 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 37th most-seen of the 260 insects we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
June and July
In those months about 40% of wildlife watchers report a Dark-Veined White in Triglav National Park on a given day, against under 5% in October to May, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Dark-Veined White sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 4 parks where we can rate Dark-Veined White sightings, Triglav National Park has the highest daily chance: about 30%. Next come Hohe Tauern National Park (Austria, about 20%) and Mercantour National Park (France, about 20%).
Same genus: Pieris
The closest relatives of the Dark-Veined White that you can see in Triglav National Park (genus Pieris, Garden Whites) are Green-Veined White (about 30%), Small White (about 20%) and Large White (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dark-Veined White is recorded against all the insects logged in Triglav National Park (40 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.
