Abstract
A new species of the genus Dyslobus is herein described which has been recently collected in the city of San Francisco. A few notes are added on the structure of the vestigial hind wings and genitalia of both sexes, which are the results of a further attempt to describe the species' position within the genus. The writer wishes to acknowledge specimens given him for dissection by Dr. E. C. Van Dyke, Mr. Mont Cazier, Mr. A. T. McClay, and Mr. F. R. Piatt.
