This summer I got the chance to photograph a lot of butterflies. Since then I had no time to upload my observations, but I’m trying to catch up on that. This means I’m learning to identify butterflies as I go (I’m able to ID the most common and unique species that occur in Portugal, but I’m a total nullity when it comes to distinguishing the more “tricky” taxa).
One of the groups that give me trouble when identifying is the Pyronia genus. 3 species of Pyronia occur in Portugal: P. cecilia, P. tithonus and P. bathseba. The last one is rather easy to distinguish from the first two. But the first two always give me trouble…
I tried reading about this topic, but my Lepidoptera guides are either too generic or a bit outdated, so there is not much information there.
Can anyone shed some light on the best way to distinguish those two species? Or perhaps recommend me some literature to read?
Thanks a lot in advance!