this from UK newspaper:

More than 90kg of dried caterpillars have been found in a man's bag at London's Gatwick airport.

The 22-year-old, who was travelling from Burkina Faso via Istanbul, told border police they were for personal consumption.

The giant haul of insects, discovered last Saturday, was split over four large bags and shrink-wrapped, seemingly for freshness, the Associated Press reported.

It was estimated that there were tens of thousands of the dried insects - the origins of which are unknown.

The caterpillars would be destroyed, officials said.

The Independent asked an insect expert, Stuart Hine, if the insects posed any threat.

He said they were likely to be mopane worms, dried caterpillars of the moth Gonimbrasia belina.

"These are eaten commonly throughout Africa and are already sold through outlets in the UK, so I can't see that there is a tangible threat to our food chain," he said.

The UK warns passengers about bringing food and insects into the country without a permit.