﻿U 
  S 
  NATIONAL 
  MUSEUM 
  

  

  Species 
  of 
  Choetospila. 
  Theocolax 
  Cerocephala. 
  

  

  ACEROCEPHALA 
  AND 
  ThEOCOLAXIA 
  

   FOR 
  EXPLANATION 
  SEE 
  PAGE 
  376. 
  

  

  