disgusting butterfly (swallowtail)

He found himself standing under a row of trees. But not hornbeam trees: these were tall palms, and they were growing, like the trees in Oxford, in a row along the grass. But this was the center of a broad boulevard, and at the side of the boulevard was a line of cafes and small shops, all brightly lit, all open, and all utterly silent and empty beneath a sky thick with stars. The hot night was laden with the scent of flowers and with the salt smell of the sea.