THE INTEREST IN INSECTS. 



30s 



THE UNDER-BARK GRUB AND ITS BEETLE. (Dendroides Canadensis.) 

 The outer bark of the dead dogwood branch, torn away to show the borings of the larvae under 

 the bark. The beetle is less than one-half inch long, the larvae about one and one-half inches when 

 full-grown. The pupa is white. A cross section through the seventh segment of the grub is shown at a 

 and through the 7th segment, with the legs, at b. 



