(Ammophila hirsuta, who hunts the Grey Worm, the caterpillar of Noctua segetum, the Dart or Turnip Moth .-- Translator's Note.) Though the quarry--caterpillars in either case--remain the same, perhaps instinct, which is liable to vary with the species, has fresh glimpses in store for us.

Besides, the edifice built by the Eumenes in itself deserves inspection.
The Hunting Wasps whose story we have described in former volumes are wonderfully well versed in the art of wielding the lancet; they astound us with their surgical methods, which they seem to have learnt from some physiologist who allows nothing to escape him; but those skilful slayers have no merit as builders of dwelling-houses.

What is their home, in point of fact?
An underground passage, with a cell at the end of it; a gallery, an excavation, a shapeless cave.

It is miner's work, navvy's work: vigorous sometimes, artistic never.

They use the pick-axe for loosening, the crowbar for shifting, the rake for extracting the materials, but never the trowel for laying.