what is the fear of butterflies and moths

it is called Lepidopterophobia

Lepidopterophobia, the word for fear of butterflies, originates from the Greek word Lepidoptera (the group or class of insects including butterflies, moths, skippers and other winged insects).

This phobia is closely linked with Entomophobia (which is the fear of insects) or Mottephobia – the fear of moths.