Caterpillar Food-plant: Bird's-foot Trefoil
On emerging from the egg the caterpillar moves
underneath a leaf. As it grows, it feeds on the leaves from all over the
food-plant Bird's-foot Trefoil. Some caterpillars will
hibernate in leaf litter at the base of the plant. Like many other species
of blue, the larva is attractive to ants, although only when fully grown.
The fully-grown larva is approximately 13mm in length.
Where to See: Not as common on Mull as the name suggests but can be seen, where the food-plant grows, mainly on the drier areas of the shore
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