20/31 By some strange craft, the wasp knows exactly where to pierce them with her sting, so as to stupefy, but not to kill, just as the sand-wasps of our banks at home stupefy the large weevils which they store in their burrows as food for their grubs. Paper-nests, too, more like those of our tree-wasps at home, hang from the trees in the woods. Ants' nests, too, hang sometimes from the stronger boughs, looking like huge hard lumps of clay. And, once at least, we have found silken nests of butterflies or moths, containing many chrysalids each. Meanwhile, dismiss from your mind the stories of insect plagues. |