Since my “Notes on Hydrometra Martini, Kirk.,” in the Canadian Entomologist for January of this year, pages 12 to 15, I have had the opportunity of examining another specimen fo Say's var. australis,” and study of it confirms the conclusions I then drew. It is unquestionably a good species and not merely a variety, and it affords me real pleasure to recognize true Hydrometra of which Say is the author.