Yellow Shell (Camptogramma bilineata (Linnaeus, 1758)) |
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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. |
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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. |
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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. |
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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. |
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Yellow Shell gathering nectar on an Umbelliferae, next to a pond's bank, early in the morning. |
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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. |