Yellow Shell (Camptogramma bilineata (Linnaeus, 1758))

Scientific name: Camptogramma bilineata (Linnaeus, 1758)
Common name: Yellow Shell
French name: Brocatelle d'or
Order: Lepidoptera
Suborder: Heterocera
Family: Geometridae
Subfamily: Larentiinae
Wingspan: 20-25 mm
Biotope: Gardens and hedgerows.
Geographic area: Eurasia.
Flight time: June to August
Number of generations : 1
Caterpillar: Brown or green, paler on the underside.
Host plant: Nettle (Urtica) and many other short plants.

The Yellow Shells are very variable in ground colour, from yellow (which is the commonest form) to much darker variants.
There are several white serrated cross lines, often four of them and often bordered with black or dark brown. The median area is sometimes darker.
Both sexes are similar.


Yellow Shell (Camptogramma bilineata) - Yvelines, France - June 28th 2006
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Yellow Shell (Camptogramma bilineata)
Yellow Shells have settled in my raspberry trees, in ivy and in the hedgerows.
To take a picture, you just need to slightly shake the leaves. The yellow shells will fly away and immediately land and stick on another leaf.
About one time out of three, their new hiding place allows to take the picture.
The flash is always needed.



Yellow Shell (Camptogramma bilineata) - Yvelines, France - June 29th 2005
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Yellow Shell (Camptogramma bilineata)
This is the same picture as before. I am used to setting the flash compensation at +1 to get a correct exposure.
I also took care not to too much trouble the Yellow Shells. I was concerned by the fact that they could move and settle into the neighbour's garden.



Yellow Shell (Camptogramma bilineata) - Yvelines, France - May 24th 2014
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Yellow Shell (Camptogramma bilineata)
By landing on this old wooden door, this Yellow Shell allowed me to get a rather dark and uniform background colour contrasting with its beautiful yellow colour.



Yellow Shell (Camptogramma bilineata) - Yvelines, France - July 31st 2008
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Yellow Shell (Camptogramma bilineata)
Yellow Shell gathering nectar on an Umbelliferae, next to a pond's bank, early in the morning.



Yellow Shell (Camptogramma bilineata) - Yvelines, France - April 2nd 2011
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Yellow Shell (Camptogramma bilineata)
I have observed this caterpillar among the low growing plants in my garden.
I didn't take enough care to shoot the picture and the result is a little disappointing. Another caterpillar please.

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