Spanish flySpanish fly
- a bright-green blister beetle (Lytta vesicatoria) of S Europe
- cantharides (sense )
- A brilliant green blister beetle (Lytta vesicatoria) of central and southern Europe.
- A toxic preparation of the crushed, dried bodies of this beetle, formerly used as a counter-irritant for skin blisters and as an aphrodisiac. Also called cantharides.