How can you differentiate between these butterflies? Look for differences along the edges of their wings. Both have black-edged wings but the Monarch has two rows of white spots along the edge. In contrast, the Viceroy has a single row white spots. Further, unlike the Monarch, the Viceroy’s hindwing has a distinctive smile line.
Adult Mimicry: Striking Similarities

While these adult butterflies have evolved to look almost identical to protect themselves from predators, their larval stages tell a completely different story. Scroll down to see just how drastically their caterpillars differ from birth
Larval Contrast: A World Apart

Need a printable version? Download the Ultimate Comparison Guide
Butterfly Identification Tools
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