Chris van Swaay
@chrisvanswaay.bsky.social
Ecologist and butterfly expert at Vlinderstichting and Butterfly Conservation Europe
Reposted by Chris van Swaay
We are also deeply saddened that the Madeiran Large White, Pieris wollastoni, is now officially extinct: it was last seen in 1986. The full report can be downloaded here www.bc-europe.eu/documents/68...
October 11, 2025 at 9:35 AM
We are also deeply saddened that the Madeiran Large White, Pieris wollastoni, is now officially extinct: it was last seen in 1986. The full report can be downloaded here www.bc-europe.eu/documents/68...
Though I wonder, because it is normally typical for C hyale to be attrackted to its host plant, C alfacariensis feeds on H comosa and Coronilla varia and probably others). They can only be seperated by DNA or by larvae (which are relatively easy to id).
September 4, 2025 at 3:16 PM
Though I wonder, because it is normally typical for C hyale to be attrackted to its host plant, C alfacariensis feeds on H comosa and Coronilla varia and probably others). They can only be seperated by DNA or by larvae (which are relatively easy to id).
It is clearly a Colias hyale/alfacariensis, which cannot be separated in the field, but C hyale does not occur (as far as I know) south of the Alps, so this must be alfacariensis.
September 4, 2025 at 3:13 PM
It is clearly a Colias hyale/alfacariensis, which cannot be separated in the field, but C hyale does not occur (as far as I know) south of the Alps, so this must be alfacariensis.
Colias alfacariensis
September 3, 2025 at 5:39 PM
Colias alfacariensis
This is a Clouded Yellow Colias croceus, another species, and a migrant from the south.
September 2, 2025 at 8:57 AM
This is a Clouded Yellow Colias croceus, another species, and a migrant from the south.
No, we don’t monitor hibernators, would be interesting.
September 1, 2025 at 7:36 PM
No, we don’t monitor hibernators, would be interesting.