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| 1] male of Euchloe simplonia - Switzerland alt.1800m - 23/06/2007 | | 2] male alt.1760m - Hautes Pyrénées (France) - 24/05/2020
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| 3] Alpes de Haute Provence alt.2100m (France) - 09/07/2011 | | 4] same specimen as 2] | |
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| 5] Alpes de Haute Provence alt.2100m (France) - 09/07/2011 | | 6] same specimen as 5] | |
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| 7] female of Euchloe simplonia alt.1400m - Hautes Pyrénées (France) - 30/06/2018 | | 8] same specimen as 7]
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9] close-up of a freshly-laid egg, laid by the female from picture 7] on the yellow-flowered host-plant also seen in 7]
| | 10] eggs laid by a female of Euchloe simplonia on Erucastrum nasturtiifolium a foodplant of the Brassicaceae family - Switzerland - 05/06/2010 | |
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| 11] close-up of an egg from picture 10] | | 12] female alt.1405m - Hautes Pyrénées (France) - 24/05/2020 | |
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| 13] Erucastrum nasturtiifolium - Switzerland - 05/06/2010 | | | |
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