THE CANADIAN ENTOMOLOGIST. 89 



THE LOST LEDRA AGAIN. 



BY HERBERT OSRORN, AMES, IOWA. 



The interesting note by Prof. Baker on Ledra perdita ( CentrticJius 

 perdita, A. cS: S) deserves notice on account of the mystery which it clears 

 up, and it may also be worth while to add some testimony in the way of ' 

 corroborative evidence. 



A few weeks ago (Dec, '96) I had occasion to review the matter in 

 an attempt to locate ihe perdita, and, in a critical examination of Amyot 

 and Serville's figure and description, was struck by the resemblance to our 

 common jSIicrocentrus caryce. On careful comparison, however, with this 

 species and with the Centruchus Liebeckii of Coding, I concluded the 

 figure and description must apply to the latter. It seemed so strange that 

 a connection so obvious, when once seen, should have so long escaped the 

 attention of Homopterists that I made a further search in the available 

 literature, with the result of finding in a note by Dr. Goding, on " Fitch's 

 Types of N. A. Membracidte" (Canad. Ent.,Vo1. XXV., p. 172), the state- 

 ment that " No. 2152, labelled Ledra perdita and capra, Mels., is Cefi- 

 truchus Liebeckii, Godg." There is no comment to indicate that Dr. 

 Fitch corrected the family reference from Ledridae to Membracidae, but 

 considering his familiarity with the Homoptera in general, and the Mem- 

 bracidse in particular, it is probable that he appreciated the full signifi- 

 cance of his specific determination, and it is quite likely that his un- 

 published notes would show comments on this reference. 



In any case, we have the testimony of Dr. Fitch in identifying his 

 specimen as Ledra perdita and its recognition by Dr. Goding as Centru- 

 chus to confirm Prof. Baker's conclusion. 



OCCURRENCE OF SCHISTOCERCA AMERICANA (Drury) 



AT TORONTO. 



Mr. C. T. Hills recently brought me a specimen of the large, hand- 

 some locust, Schistocerca Americana, Drury, which was taken about the 

 1 2th of October, 1896 (the exact date was not recorded), by Mr. H. 

 Parish, while collecting at High Park. Mr. Parish found the insect rest- 

 ing on the trunk of a tree. The specimen is a female, in perfect con- 

 dition, measuring 4.75 inches in expanse of wing, and is in every respect 

 similar to examples of this species which I have from Tennessee. This 

 is only the second time it has been taken in Canada ; Mr. J. A. Moffat 

 having recorded it from London (Can. Ent., XXVII. , p. 52.). 



E. M. Walker, Toronto. 



