There has just come into my hands (April, 1900) the paper on this genus by Osborn and Ball in the Proc. Davenport Acad. Sci., Dec., 1898. As some of my conclusions regarding the species of this genus do not coincide with those of the above authors, it may be of interest to present another view.

Verticis, ramentosus and Striola are in the same condition Deltocephalus Melsheimeri used to be in: different authors might readily find many different forms that possibly fit the descriptions. Perhaps the types ramentosus and striola are in existence. I think more harm than good will come of attempts to identify these three forms without further data then the mere descriptions.