Truth may be likened to a bull's-eye—it is much more difficult to hit than to miss. The “splitters” frequently throw their shots too high and the “lumpers” too low, and there are many other sources of aberration which cause the careless worker to miss the bull's-eye. It has sometimes been my misfortune to aim a little too high in monographic work, where the familiarity engendered by long and close investigation may have led to the assignment of too great weight to certain differential characters, but, in the case of the genera allied to Homœusa (Journ. N. Y. Ent. Soc., VIII., p. 53), I feel myself obliged to dissent from the views advanced by Mr. Wasmann in the September number of this journal.