76 



THE SCOLYTID BEETLES. 



Fig. 37.— The larger Mexican pine beetle 

 (Dendroctonus parallelocollis): Adult. 

 Greatly enlarged. (Author's ill.) 



Fig. 38.— The larger Mexican pine beetle: Sec- 

 tion of egg gallery . Reduced. (Author's ill.) 



Fig. 39.— The larger Mexican pine beetle: Distribution map. (Author's illustration.) 



