Bui. 11 4, Bureau of Entoir.ology, U. S. Dept. of Agriculture. 



Plate XVIII. 



Boll-Weevil Parasites. 



a, Lariophagus texanus, female; b, emergence hole of Tetrastichus hunteri from weevil larva; 

 c, Tetrastichus hunteri, female; c', antenna of same; d, puparium of Ennyomma globosain 

 weevil larva; e, Ennyomma globosa; f, Cerambycobius eyaniceps, female; /', natural position 

 of same. (Original.) 



