Phthirapterans
Phthirapterans are a diverse group of small, wingless insects that are ectoparasites of birds and mammals. They have highly specialized mouthparts for feeding on the blood, skin, and feathers of their hosts. Phthirapterans are commonly known as lice and are found worldwide in a variety of habitats. They have adapted to life on their host animals and have evolved unique morphological and behavioral characteristics to survive in this specialized niche.