As Lafcadio Hearn observes in his essay "Insects in Greek Poetry", "the capacity to enjoy the music of insects and all that it signifies in the great poem of nature tells very plainly of goodness of heart, aesthetic sensibility, a perfectly healthy state of mind." And to this, one might add a keen sense of wonder.

Insect Literature collects twenty essays and stories written by Hearn, mostly in Japan, a land where insects were as appreciated as in ancient Greece. With a witty gentleness bordering on the eerie, Hearn describes in these pieces the song of the cricket, the spectral flight of dragon-flies, quotes the entomological haiku of classical Japan, and recalls Buddhist tales in which the souls of insects and men are never far one from the other.