|Silver-Bordered Fritillary - Boloria selene|
Live butterflies photographed in the wild at Winfield, Illinois
Family: Nymphalidae / Subfamily Heliconiinae
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|Subfamily Heliconiinae can be divided into 45-50 genera and were sometimes treated as a separate family (Heliconiidae) within the Papilionoidea. |
Most longwings are found in the Tropics, particularly in South America; only the Argynnini are quite diverse in the Holarctic. Especially tropical species feed on poisonous plants, characteristically Passifloraceae vines, as larvae, becoming poisonous themselves. The adult butterflies announce their acquired toxicity with strong aposematic colors, warning off would-be predators. There are several famous cases of Batesian and Müllerian mimicry both within this group and with other butterflies. Other commonly-seen foodplants are Fabaceae, and particularly among northerly species Violaceae.
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