146 JOURNAL OF ECONOMIC ENTOMOLOGY [V^ol. 9 



Locality No. of Specimens Reared Collector 



Hagerstown, Md 14 McConnell and Myers 



Andersonburg, Pa 1 Myers 



Warfordsburg, Pa 1 Myers 



Montoursville, Pa 1 Myers 



Ford City, Pa 1 McConnell 



Greenville, Pa 1 McConnell 



Total 19 specimens 



All of the localities except the last two are east of the Allegheny 

 Mountains. Ford City, Pa., is on the Allegheny River, and Green- 

 ville is on the western edge of Pennsylvania. 



We know practically nothing of its life-history, as I have never 

 succeeded in inducing it to oviposit. Adults have emerged in cages 

 from April to June inclusive and from September to December in- 

 clusive. Most of the specimens reared were males. 



Importance 

 Riley stated that it was introduced because it was more abundant 

 in England and far more beneficial than any of our native species. 

 Enock was probably his authority for conditions in England. His 

 statement for this country seems very doubtful, in view of the scarcity 

 of the species. It may not be adapted to the climate, and again it 

 may become very abundant during a widespread outbreak of the 

 Hessian fly. The latter point of view is probably more nearly ccrrect, 

 since it seems to be able to maintain itself over periods when the host 

 is scarce, in spite of the predominance of males. 



List of References 



1891 . Forbes, S. A., Insect Life, Vol. IV, pp. 179-81 . 



1891. Riley, C. V., Report of the U. S. Entomologist (not seen). 



1892. Forbes, S. A., Insect Life, Vol. V, p. 73. 



1893. Riley, C. V., Insect Life, Vol. VI, pp. 133-4. 



1894. Howard, L. O. (?), Insect Life, Vol. VI, p. 375. 



1895. Howard, L. O. (?), Insect Life, Vol. VII, pp. 356-7. 

 1895. Howard, L. O., Insect Life, Vol. VII, pp. 414-15. 



1895. Marlatt, C. L., Circular No. 12, N. S., Division of Entomology, U. S. 

 Department of Agriculture. 



1898. OsBORN, H., Bulletin No. 16, N. S., Division of Entomology, U. S. Depart- 

 ment of Agriculture, pp. 38-41. 



1901. Marlatt, C. L, Farmers' Bulletin No. 132, U. S. Department of Agriculture, 



pp. 13-22. 



1902. Felt, E. P., 17th Report State Entomologist of New York, Bulletin No. 53, 



New York State Museum, pp. 699-925. 



Hagerstown, Md., December 22, 1915. 



