Grubs up: Carrefour offers Spanish shoppers insect-based snacks

Supermarket chain's new range includes spicy chilli buffalo worms and smoked crickets

Despite being a country that guards its culinary traditions more jealously than most - the recipe for the perfect tortilla proves enduringly divisive, and woe betide the anglosajon celebrity chef who dares pollute a paella with chorizo - Spain could be set to swell the ranks of the two billion people on the planet who regularly eat insects.

Or so the supermarket giant Carrefour is hoping.