Naming
Another nickname for the Marbled White butterfly is the "Marmoress".
Habitat
Despite its common name, this butterfly is one of the "browns", of the subfamily Satyrinae. They are a common sight in unimproved grasslands across southern Britain, particularly on the South Downs.
Reproduction
Eggs are laid on the wing, or from brief perches on grass stems, and are just sprinkled among the grass stems. Upon hatching, the larvae immediately enter hibernation, and only feed the following spring when the fresh growth occurs. They are a lime green colour, with a dark green line running down the middle of their back. Pupation takes place at ground level in a loose cocoon. Adults emerge in July, and, on a good site, in warm, sunny weather, thousands can be seen gently fluttering amongst the grass heads.
Food
Like other members of its subfamily, the larvae feed on various grasses. The full range is unknown, but it is thought that Red Fescue "Festuca rubra" is essential in their diet.References:
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