The Xerces Blue was a member of the gossamer-winged butterfly Family and endemic to the coastal sand dunes of San Francisco. Here she suffered due to urban development, her habitat disappearing and taking her with it. It is thought that introduced ant species may have contributed. Gossamer-winged butterfly rely on ants in the early stages of larval development. The larvae release a sweet-tasting honeydew which the ants find attractive. They then tend for the caterpillar and are rewarded with the honeydew. Introduced ants may have displaced the naturally occurring ants but not replaced them in the juvenile-care stage.
You can colour the butterfly if you like - the colour is in the name :)
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