Many butterflies have evolved strategies to avoid attracting attention, but there is one circumstance when an insect wants to be noticed: during mating season. Male leopard lacewings sport flashy orange designs, which may signal to females that for such a conspicuous target to still be alive, he must have good genes.

The leopard lacewing exhibits sexual dimorphism, which means that females aren't nearly as showy. Because they don't need to impress their mates, the females' wings are brown, black, and white.