Insectophobia

Entomophobia (also known as insectophobia) is a specific phobia characterized by an excessive or unrealistic fear of one or more classes of insect, and classified as a phobia by the DSM-5. More specific cases included apiphobia (fear of bees) and myrmecophobia (fear of ants). One book claims 6% of all US inhabitants suffer from it.

Entomophobia may develop after the person has had a traumatic experience with the insect(s) at stake. It may develop early or later in life and is quite common among the animal phobias. Typically one suffers from a fear from one specific type of insect, and entomophobia leads to behavioral changes: the sufferer will avoid situations where they may encounter the specific type of insect. Cognitive behavioral therapy is considered an effective treatment.

...
Wikipedia