In addition to the thirteen species figured in our plates there are two other species of the genus, _B. butleri_, Edwards, from Grinnell Land, and _B. improba_, Butler, from near the arctic circle. It is not likely that many of the readers of this book will encounter these insects in their rambles, and if they should, they will be able to ascertain their names quickly, by conferring with the author.
The entomologist must not expect to be always thoroughly understood. The ways of scientific men sometimes appear strange, mysterious, bordering even upon the insane, to those who are uninitiated. A celebrated American naturalist relates that on one occasion, when chasing butterflies through a meadow belonging to a farmer, the latter came out and viewed him with manifest anxiety. But when the nature of the efforts of the man of science had been finally explained, the farmer heaved a sigh of relief, remarking, in Pennsylvania Dutch, that "he had surely thought, when he first saw him, that he had just escaped from a lunatic asylum." The writer, a number of years ago, after having despatched a very comfortable lunch, sallied forth one afternoon, in quest of insects, and in the course of his wanderings came upon a refuse-heap by the roadside, opposite a substantial house, and on this heap discovered an ancient ham, which was surrounded by a multitude of beetles of various species known to be partial to decomposed, or semi-decomposed, animal matter. He proceeded immediately to bottle a number of the specimens. While engaged in so doing, the window of the house across the way was thrown up, and an elderly female thrust her head out, and in strident voice exclaimed: "Hey, there! What are you doin' with that ham? I say, don't you know that that ham is spiled?" As he paid no attention to her, she presently appeared at the door, came across the street, and remarked: "See here, mister; that ham's spiled; Lucy and me throwed it out, knowin' it was no good. If you want a good meal of wittles, come into the house, and we will feed you, but for mercy's sake leave that spiled ham alone." It took considerable effort to assure her that no designs upon the ham were cherished, and she went away, evidently completely mystified at the wild conduct of the well-dressed man who was grubbing in the rubbish-pile.