342 THE CANADIAN ENTOMOLOGIST 



VANESSA' CALIFORNICA AGAIN. 



BY F. M. WEBSTER, WASHINGTON, D. C. 



I note with interest the criticism of Dr. J. McDunnough of 

 Decatur, Illonois, in the July Number of the Canadian Ento- 

 mologist, on my note in the preceding April number relating to 

 the above-named species. 



The trouble seems to be that Dr. McDunnough is looking at 

 the matter solely from the viewpoint of what the writers of the let- 

 ters, quoted by me, claimed to have seen, while I used these letters 

 in their entirety, together with the identificatijns as they came to 

 me, for the purpose of complete record, not only with the object 

 of showing what these people stated that they saw, but also what 

 they actually "produced in court," thus the better enabling every- 

 one t3 draw his own conclusions from all of the evidence presented. 



The problem of the exact larval fcod habits of the species is 

 nDt susceptible of colution, either in Washington, D. C, or in 

 Decatur, Illinois. 



A PARASITE OF THE CHINCH BUG EGG.* 



BY JAMES W. MCCOLLOCH, 



Assistant Entomologist, Kansas State Agricultural College and Experiment Station. 



In the experiments conducted this year to determine the time 

 of the first appearance of young chinch bugs and the mortality of 

 the eggs, a large number of eggs were collected in the field for 

 examination. The eggs, which were collected at different intervals 

 and in different localities, were examined daily. While thus ex- 

 amining the eggs it was noticed that some of them became dark in 

 colour instead of assuming the usual red colouring. These eggs 

 were isolated, and on Alay 19 there emerged from them three 

 parasites. With these three parasites as a basis, the life-history 

 was carried through four generations, running up to July 5. Since 

 this was the first time between the two broods of the chinch bug, 



*Mr. A. B. Gahan, Entomological Assistant of the Bureau of Entomology, 

 U. S. Dept. of Agric, to whom specimens of the parasite were sent for deter- 

 mination, says: "I have made a partial examination of these parasites, and find 

 them to belong to the family Proctotrypidce, and they probably fell close to the 

 genus Telenomus. It will require further study for me to determine definitely 

 regarding them. It seems probable that they represent not only a new species, 

 but possibly a new genus." 

 October, 1913 



