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TRICHOPTERA. 



Notes ox North American Phrygaxid.^, with 



ESPECIAL reference TO THOSE CONTAINED IN THE 



Collection of the British Museum. 



By Robert M^Lachlax', F.L.S. 



On looking over the descriptions of PlLryganklce in Dr. 

 Hagen's ^' Synopsis of the Neuroptera of North America," 

 I observed that numerous queries were attached to the 

 descriptions of the species contained in the national collection, 

 which for the most part were described by Mr. Walker in 

 the British Museum Catalogue. As since the time that this 

 catalogue v/as published, considerable progress has been made 

 in the knowledge of the differential generic and specific 

 characters in these insects, I determined upon comparing the 

 types with Dr. Hagen's descriptions, and the notes which 

 follow are the result. Dr. Hagen has with great kindness per- 

 mitted me to make use of his own memoranda made during 

 his visit in 1861, which, owing to the work being then on the 

 eve of publication, were too late to be incorporated in it. No 

 part of the world is probably richer in Phryganidce than 

 North America, and those described can only be a tithe of 

 the number actually existing. 



Neuronia iiTorata, Synopsis, p. 249, 1. — This is not 

 Fabricius's species ; his type in the Banksian collection has 

 the form of a GlyplwtceliuSj and is perhaps the same as 



