yti^ 



U. S. NATIONAL MUSEUM 



PROCEEDINGS, VOL. 70, ART. 23 PL. 2 



sexmacaJata suturalis nigrositfnata. spUonota circumdata circu?ndata 



scalaris scalaris scalarls scalaris durangoensis 



North American Beetles of the genus Oedionychis 



For explanation of plate see page 44 



