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The Holly Blue Celastrina argiolus |
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The Robber-fly
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The Robber-fly is a bristly predatory fly which chase and capture insects in mid-air. It would have no problem catching the small species of butterfly such as this small Holly-Blue.Most species sit and wait, and then dart out when likely prey apears. The prey is then sucked dry with the stout probosis. A beard on the face protects eyes from struggling prey.