The largest European moth

I have to come right out and say it – this is the largest European moth’s caterpillar.  (Does that mean it is the largest European caterpillar?)

Saturnia pyri

Saturnia pyri

A couple of evenings ago I went out into the back garden to do a bit of watering and as I reached to turn on the hose I noticed something crawling along the wall in front of my eyes.  I did a double take as I had never seen anything like it before.  A few shouts and the whole household was roused to come and see what I had found.

Saturnia pyri from the front

Saturnia pyri from the front

It was not only its size that was astounding, 10 cm., but the blue baubles made it look very unreal.

Saturnia pyri from the rear

Saturnia pyri from the rear

I wasn’t able to get good pictures because of the poor light and the steady progress it was making along the wall.

Saturnia pyri on the move

Saturnia pyri on the move

I had a good idea what it might be as I had seen photographs of the huge moths that can be seen in the area.

For pictures of the adult moth and more information from Wikipedia please click on the links.  The moths fly from April to June so I presume the caterpillars must over winter in pupal form and my caterpillar did seem dead set on getting somewhere quickly, so it must have been searching for a convenient place to over winter.

The caterpillars feed on tree leaves and it appeared to have dropped out of our apricot tree.  The next day I started to search for leaves with large holes or even whole branches denuded!  However, when I looked up into the branches of the apricot tree I found something else.

Ring doves in nest

Ring doves in nest

The apricot tree was already being used by the Ring doves to nest in and I hadn’t noticed.  Not the most beautiful babies, perhaps I could label them “cute” if I was in a charitable mood.  I had to give up on my search for traces of the caterpillar’s passing.

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47 thoughts on “The largest European moth

    • I have exactly the same idea. I had hope to look for night-flying moths this year but did not get round to it as I was in the UK for longer than I had planned. Now I really have an incentive for next year.

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  1. Wow! That’s an incredible creature! I love your photos – looks like he’s in some kind of weird party get-up! True, those baby birds are not exactly pretty, but they’ll make up for it when they grow up.

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  2. It’s enormous (the caterpillar). What weird looking ornaments on its fleshy body. I wonder how it avoids getting eaten (probably eats some toxic plant or other). What fun to find some baby ring doves!

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    • My husband actually saw the moth itself some years ago before we were living here permanently and a friend even took a photograph of the moth, so now I would love to see the actual moth for myself.

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  3. I found one of these babies trundling through my hallway – it was certainly easy to spot – quite magnificent and so BIG.

    I also got a picture of what could be its parents in flagrante delicto – posted under ‘Creatures Great and Small’.

    Hope you get to see it in adult form – bet you on the lookout for the cocoon?

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    • You should have put a link into that post, they are great photos and they are the same caterpillars so you have been lucky enough to see the adults too. Have you any idea where the caterpillars are likely to pupate?

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  4. Caterpillars, spiders, frogs, and mice are truly opportunities to appear really manly for your wife or girlfriend without encountering significant risk…the best of both worlds. I loved the photos I have never seen anything like that.

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  5. Pauline commented on the baby collar’d doves…
    but I’m far more interested in that caterpillar, Amelia…
    the illustration in Chinery just doesn’t do it justice…
    it is fantastic… especially with the turquoise blue spots!
    We get the adults [and probably the caterpillars here, too]…

    I have a fore and hind wing in the French copy of Chinery…
    the former was found in Grand Pressigny, by the Marie….
    I hope the bat was happy with the meal!
    The front rib of that wing is as hard as iron and very stiff…
    just one of Natures wonders, construction like that!!

    You’ll find a lot of pix on our blog entry “The Night Visitors”…
    [http://le-moulin-de-la-forge.blogspot.fr/2013/05/the-night-visitors.html]
    including some taken through the window as it watched us watching it!!
    It has a most amazing furry body!

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    • Those are fantastic photographs. You wrote that you took them in the morning light but the post is night visitors. When do you think is a good time to see them? I really would like try to see them next year. The other moths were gorgeous too. We often see the Jersey Tiger Moth but that is day flying and we have seen it while we have been out on walks during the day.

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      • They normally come to the windows at night…
        the ‘morning’ pictures are very early…
        courtesy of the cats wanting their morning meal….
        so I am usually up and about around 6:30 / 7:00 AM!!

        So the pictures taken in the morning are of the one that stayed the night on the window sill / window frame.
        However, it did allow natural light pictures rather than flash!
        I moved it to somewhere more secluded and shady after I’d taken the pix…
        both to protect it from the sun and the birds…
        the cats aren’t bothered by it…
        the inquisitive female, RonRon, sat and stared at it through the window as it looked in…
        but didn’t venture out!
        She normally eats any moth that ventures in…
        phwaaa! All those scales…

        We get Garden, Jersey, Ruby and now Cream-spot Tigers here…
        Garden and Jersey are both out during the day.

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  6. Fabulous pics of a fabulous critter Amelia (and cute chicks too!). I recently photographed a very similar caterpillar – our only native member of the Saturnia family, the emperor moth S.pavonia. It looks the same but its spots are barbie pink instead of blue.

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