He yearns to returns the greetings of the large and small insects he meets, such as a locust, a praying mantis, a spittlebug, a luna moth, and some mosquitoes.
The most famous successful example was the introduction of the gray moth, Cactoblastis cactorum, into Australia to control the prickly pear, Opuntia inermis, which was overrunning vast tracts of land.