Using lobsters for catching garden insects...

1793 James Sowerby (English artist, 1757-1822) Lobster

"Procure the hollow claws of Lobsters, Crabs, &c. and hanging them in different parts of the garden, the insects creep into them, and are easily taken; but the claws must be often searched." 
The Complete Vermin-Killer: A Valuable and Useful Companion for Families, in Town and Country, (London, 1777).