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In contrast, workers are wingless females with smaller body size and degenerated reproductive tracts, usually without a sperm storage organ.

Just inside, Max Streicher’s “Quadriga” stages massive billowing horses that call to mind wingless Pegasi the way they seem to gallop through the air.

The wingless insects usually spread through direct contact from the hair of one person to the hair of another.

The wingless, pill-shaped insects feed on mammalian blood and, as indicated by their name, are notorious for infesting human dwellings.

The human louse is a wingless, blood-sucking parasite that lives its entire life on its host.