In the Proceedings of the Zoological Society of London for 1892, Mr. W. Schaus describes as new 180 species of “Bombycid” moths from Mexico and various parts of South America, with three “new genera.” Of these, one is located in the Lasiocampidæ and two in the Bombycidæ. All these generic descriptions are utterly inadequate, and the question should be raised seriously whether names founded on such descriptions should be recognized. We are accustomed to believe that the classification of Herrich-schaffer is still used by lepidopterists, at least in its fundamental features; but in these descriptions the word “vein” does not appear. The description of the Lasiocampid is the longest of the three, yet the author gives but eight characters by which to identify his genus. Five of these are common to nearly all the genera of the family; two others appear in several genera already well known, and the genus must be distinguished from the one hundred and forty odd genera of Lasiocampidæ already catalogued, by the female having an expanse of wing of 95 mm., and a short abdomen, “not extending beyond the secondaries!”