Defining features for distinguishing closely related butterfly species

Community and Forum → Taxonomy. Classification → Defining features for distinguishing closely related butterfly species

vasiliy-feoktistov, 02.05.2012 11:55

I don't even know if there is such a topic. Therefore, I will ask you to write: if such a topic exists,I will move the post.
Inspired by recent discussions in the definition of butterflies......
I decided to show you clearly, in the picture, how it is easiest to distinguish between two Nymphalis species near Moscow.
The most obvious difference is the row of yellow spots on the hindwings of Nymphalis polychloros.
Actually, where it can be seen, I put exclamation marks.

This post was edited by vasiliy-feoktistov - 06.05.2012 08: 46

Pictures:
picture: xanthomelas_vs_polychloros.JPG
xanthomelas_vs_polychloros.JPG — (157.7к)

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03.05.2012 8:20, vasiliy-feoktistov

Of all these signs, the white (yellow) spot at the apex is the most reliable, but it is also present in highly flown specimens. it may fade. The remaining spots are somewhat adventurous to use for identification. It is also a good idea to look at the legs: in xanthomelas, they are usually noticeably lighter than the body - you can see them in a resting position with folded wings.

Thank you for the addition!
These signs, too, of course. According to the determinants, they are spot-based and are bred most often.
But I tried to show it as clearly as possible: I have never seen yellow spots on the rear wing of xanthomelas, but polychloros always has them.
This was already discussed on the forum a few years ago. But for the life of me, I can't find it. That's why I conceived this topic. Often questions in the definition of butterflies arise on them.
P. S. I would also like to show two similar species of Catocala:
C. promissa and C. sponsa. But I can't unfortunately: C. sponsa is available, but C. promissa has never been seen/caught.
Can someone write about them?

This post was edited by vasiliy-feoktistov - 03.05.2012 08: 44

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09.07.2012 13:41, aleko

Why are images of some butterfly species blacked out on this site and can't be opened at an enlarged size? http://sungaya.narod.ru/hete/psy/psy.htm
And why are there only three fingerflies? Aren't they interesting to anyone? http://sungaya.narod.ru/micro/pter/pter.htm

Everything is extremely simple: he scored on the site almost all the species that are on the list of lepidoptera in the Moscow region, but he could not find all of them "live", so he left only pictograms taken from some other places for them. I.e. these are just stubs for future photos, if such species are real they'll show up with him or someone he knows. Especially" tight " with sacks and glasses, these are really complex and rare groups, few people are engaged in them. By the way, if you have something from the "gray" list, you can contact Sasha, the author of the site, and I think he will be happy to use your photo. this way the site will also be updated

26.07.2012 9:44, vasiliy-feoktistov

PS I would also like to show two similar Catocala species:
C. promissa and C. sponsa. But I can't unfortunately: C. sponsa is available, but C. promissa has never been seen/caught.
Can someone write about them?

Continued reading:
I was lucky enough to find the missing Catocala promissa (Denis & Schiffermuller, 1775) and decided to show the most obvious difference between this species and another closely related species, Catocala sponsa (Linnaeus, 1767). First of all, you should pay attention to the shape of the black sash of the rear wing: it is always different in these two species (where there are exclamation marks). Now years have representatives of the genus Catocala (in particular in my region), so the post is just in time.

This post was edited by vasiliy-feoktistov - 26.07.2012 09: 45

Pictures:
picture: promissa_vs_sponsa.JPG

promissa_vs_sponsa.JPG — (165.98к)

Likes: 6

26.07.2012 10:55, mikee

Continued reading:
I was lucky enough to find the missing Catocala promissa (Denis & Schiffermuller, 1775) and decided to show the most obvious difference between this species and another closely related species, Catocala sponsa (Linnaeus, 1767). First of all, you should pay attention to the shape of the black sash of the rear wing: it is always different in these two species (where there are exclamation marks). Now years have representatives of the genus Catocala (in particular in my region), so the post is just in time.

Catch you a sponsor or something?

They're flying right now... But the promises, if they still remain, are already killed. Elects flew in last weekend, so Fraxini won't be waiting long either.