THE CANADIAN ENTOMOLOGIST. ^9 



The spring was very late that season wiicn most of these- J^a/i/ios 

 appeared : the buds were just beginning to show signs of forthcoming 

 leaves, but on these and the l)ranches were deposited numl)ers of eggs, 

 chiedy on tlie latter. It is rare to find any on the branehes when the 

 leaves are well out. 



fn t88i, tiie \'erniillion River again overflowed the grounds at Pontiac, 

 but the closest observations here at Fairbury, and at Pontiac, failed to 

 show us a sign of IVa/s/i// or Abbot ii : even tc/a/iiofiides was very scarce 

 that season, but inarcclhis. was ([uite plentiful from late in May throughout 

 the season, but were much smaller at first than those of previous seasons 

 or those coming later. 



In 1882, the weather was very unfavorable for these insects, and Init 

 few Walshii were seen. Mr. Story took a few at Pontiac, and I secured 

 several about the same time ; even the most common form, iiiarcc/his, 

 was very scarce. I visited (juite a number of Pawpaw groves, including 

 the extensive bottoms near the Illinois River, but 1 could see no signs 

 anywhere of larvaj until, the latter part of the season, when I found eggs 

 on the young leaves of their food plant, and after that the leaves showed 

 here and there where the larvre had been at work, which in previous seasons 

 could be seen throughout the warm weather. 



Mr. W. H. Edwards had written me two years before this, saying 

 that •• the late Benj. T). Walsh had told him, liefore his decease, that the 

 butterfly named in honor of him was not found in this State," and Mr. E. 

 expressed the opinion that it was because no one had discovered how or 

 when to look for it. 



It is therefore no wonder that this insect shbuld have escajjcd the 

 notice of other collectors, when such an enthusiast as our honored and 

 lamented Prof. B. D. AWalsh foiled to Wnd it. 



The parasites I have foiuid infesting /\ ajax are a black ichneiunon 

 fly, rather large, belonging to the genus Anomaloii, and another, perhaps a 

 little smaller than the above, with a yellowish brown body and black shiny 

 wings, Trogus cxrsorius, BruU., species kindly identified for me by Prof. 

 C. V. Riley. 



