PLATE III. 



Oalleric!^ mid viivi'ft of tlir ^jn-iice-dcfitrojiiiKj hecfJc {Di'iulrocfontis picenpcrda 



Hopk. n. sp.) 



Primary and secondary j2:alleries or mines of the sprace-destroying beetle, show- 

 ing parts of six primary galleries — reduced about one-fourth. 

 54 



