Memoirs on the Coleoptera, Vol. 9
Casey, Thomas Lincoln![Memoirs on the Coleoptera, Vol. 9](https://support.digitalhusky.com/media/annotations/sorted/206/20634535/CHSBZCOP0320634535.jpg)
Excerpt from Memoirs on the Coleoptera, Vol. 9: 1920
In defining the genera of Platyninae, a great deal of consideration must be given habital differences and peculiarities, as in the Ptero stichinae, for radical divergencies in the structure of special organs and parts of the body are comparatively rare, while the habital differences are so constant throughout large groups of species, as to indicate beyond doubt that this is the natural meth...