Haematopinus asini Stor hestelus (Sucking louse of horses)

Order: Phthiraptera: Lice | Suborder: Anoplura: Sucking lice.

Specific morphology: Adult specimen (length: 2-3.5 mm). Relatively stout louse, but smaller than the sucking louse of pigs. Abdominal segments with brownish edges.

Hosts: Equines

General morphology of sucking lice: Wingless, dorso-ventrally flattened insects. Head: Relatively narrow, pointed front with thin sucking mouthparts, long lateral antennae. Thorax: Strong legs, large claws for grasping. Abdominal segments: Black when blood-filled, wider than thorax, lateral spiracles with brown plates.