484 MATERIALS FOR A FAUNA CANADENSIS. 



MATERIALS FOR A FAUNA CANADENSIS. 



[^Contimied from page 461.] 



BY WILLIAM HINCKS, F.L.S., B.S.E., 



HON. MEMB. LIT. LIT. AND PHII. SOC, TOEKSHXKE PHIL. SOC, AND BOT. SOC. OP CANADA i 

 COEE. MEMB. OF THE ESSEX CO. INST. ; PEOF. NAT. HIST., HNIV. COLL., TOEONTO. 



Ord. Neueopteba. Fam. Phetganeida (Caddis-flies.) 



We adopt here, not without hesitation, the sub-divisions given 

 by Hagen, in the valuable synopsis of American Neuroptera pre- 

 pared by him for the Smithsonian Institution, and published in the 

 Smithsonian Miscellaneous Collections, from which work we have 

 selected the species likely to be met with in Canada. "We have 

 thrown the characters of the sub-families and genera into a tabular 

 form for the convenience of the student. It will be observed that 

 the first division for the determination of the sub-families supposea 

 our possession of specimens of both sexes. Where this is not the 

 case, the characters immediately marking the sub-families will in 

 general remove doubt. Thus, if the specimen be a female, having, 

 therefore always five articulations to the maxillary palpi, and having 

 three ocelli, the latter character excludes two sub-families. Among 

 the remainder, the structure of the last articulation will distinguish 

 Hydropsyctiina ; and if our specimen is not found to belong to this 

 sub-family, the Bhyacophilinae would be without transverse nervures 

 to the anterior wings, and the shape of these wings w^ould distin- 

 guish Limnophilina from Phryganeina. We have added auxiliary 

 characters to those given by our author, in order to remove the diffi- 

 culty here noticed. Another change we have ventured to make. 

 As in other branches of Zoology the terminations in ida or idae 

 mark the greater families, and those in ina or inae the sub-families,, 

 we have thought it convenient to follow this rule in Entomology 

 also, the deviation from it being, we presume, accidental, and sup- 

 ported by no reason.. 



