30 



PARASITES OF THE COTTON BOLL WEEVIL. 



12. Myiophasia senea WIed. Pupae of this species within the lar- 

 val skin of the weevil were taken from material collected at Many, 

 La. (3 specimens), and Waco, Tex. (1 specimen); also one specimen 

 in imperfect condition was found in a small boll collected at Victoria, 

 Tex., July 12. Its puparium was within the skin of a weevil larva. 



13. Pediculoides ventricosus Xewp. is a common weevil parasite in 

 Mexico. 



14. Mites were frequently found to have destroyed the weevil 

 stages in fallen squares, especially at Calvert, Tex. 



TyroglypJius breviceps Banks was described as a weevil enemy from 

 Victoria, Tex. 



Fig. ti.— Occurrence of predominant parasites of the boll weevil in Texas and western Louisiana 

 • showing — 



Occurrence of Catolaccus incertus. = Bracon meUitor. '\Ccrambycobius cuaniccps. f Eurii- 

 toma tylodermatis. //Limits of predominance of single species. Limits of two predominant 

 species. (Original.) 



15. Hydnocera puhescens Lee. was found frequently to have killed 

 weevil stages. Records of this predatory habit are from Browns- 

 ville and Waco, Tex., and Many, La. In a great many other cases 

 evidence of its predatory nature was less reliable. 



16. Caiharius cassise Reiche was found several times to be preda- 

 ceous in its larval stage upon the weevil. 



Catolaccus anihonomi Ashm., determined by J. C. Crawford. Four 

 specimens practically identical in character with the type of this 

 species were bred from cotton squares collected October 12, 1906, at 



