U. S. Dept. of Agriculture, Manual of Dangerous Insect 



Plate XI. 



Coniferous Bark Beetles. 



Fig. l.—Polygraphus tnnchi: Larva; la. pupa: 16, adult female, dorsal view (above) and lateral 

 view (])elQW): If, head of female: \(i, antenna: If, adtilt male, dorsal view (above) and lateral view 

 (below). Fig. •I.—Phlmoshuix zlwbi: 1':kk; -'"■ ;tdult female, dorsal view (above) and lateral view 

 (below); 26, antenna: 2c, let;: 2d, adnlt male, dorsal view (aliove) and lateral view (below). Fig. 

 S.—Pityogenes coniferac: Adult female, dorsal view (left) and lateral view (right, above figure); 3a, 

 antenna; 36, leg; :^f, adult male, lateral view (left) and dorsal view (right). (Stebbing.) 



