PROCEEDINGS, 1917. 61 



gatrix Walsh, only one larval parasite was found viz. Gtatotechus otgyiae, Fitch. Two 

 predaceous bugs, Podisus serieventris Uhlei and Podisus maculiventris Uhler fed ex- 

 tensively on the larvae of all stages. The writer has frequently seen as many as three 

 and four of these pentatomids feeding upon a single larva. These bugs were highly 

 predaceous both in the nymphal and adult stages. An adult of the green apple bug 

 (Lygus communis Knight) has been recorded* as piercing a larva of Notolophus antiqua 

 Linn, with its beak and holding on with great tenacity. 



ACKNOWLEDGEMENTS. 



The writer is indebted to Prof. W. H. Brittain for assistance and suggestions in 

 carrying on the work, also to Mr. L. G. Saunders for assistance at the laboratory and to 

 Mr. C. B. Gooderham, who assisted at the beginning of the investigation. He also 

 wishes to thank Mr.Muesebeck and Dr. Matheson for determining the hymenopterous 

 parasites, and Mr. H. M. Parshley for his determination of the Hemiptera. 



'By W. H. Brittain (Bulletin No. 8, N. S. Dept. Agr.) 



