G. C. DAVIS. 



193 



A REVIEW OF THE ICHIVELMO^^ID SUBFAMILY 

 TRYFHONIX^. 



BY G. C. DAVIS. 



The subfamily Tiyphonin^e is perhtxps the most difficult for sys- 

 tematic classification of any in the family Ichneumonidse. European 

 specialists agree as to this, and a review of the present arrangement 

 of our own species conclusively justifies the statement in this country. 

 More material has helped to correct many errors, still more is neces- 

 sary to correct others that are yet doubtful. 



It has been my privilege in this study to have before me for com- 

 parison nearly all the known American types of Tryphoninse and a 

 great deal of unclassified material from all parts of the United States 

 and Canada. For these favors I am especially grateful to Mr. E. T. 

 Cresson for the loan of his types, which are mostly in the collection 

 of the American Entomological Society in Philadelphia, and to that 

 society for much unclassified material ; to Mr. L. O. Howard, curator 

 of the United States National Museum, for the loan of Cresson and 

 Ashmead types and unclassified material in that collection ; to Mr. 

 Wm. H. Ashmead, for the loan of types in his private collection ; to 

 Mr. W. H. Harrington, of Ottawa, Canada, for the loan of his own 

 and a few Provancher types in his collection ; to Rev. Thomas W. 

 Fyles, of Quebec, and Rev. J. L. Zabriskie, of New York, for loan 

 of types; also to Mrs. Slosson, Dr. Nason, Prof. Aldrich, Prof. Gil- 

 lette, and a host of others who have contributed material that greatly 

 aided, not onh^ in new types, but in a better classification from a 

 larger series. Much valuable aid has also been rendered me by the 

 European specialists. Dr. O. Schmiedeknecht, of Blankensburg, 

 Germany, and Dr. Jules Tosquinet, of Brussels, Belgium, who have 

 given me many good suggestions and sent me many representative 

 specimens of the newer genera of Foerster and Thomson. 



A part of the Provancher species are not classified in this review 

 because of the provincial restrictions against loaning any of their 

 material, and conditions would not permit my second trip to Quebec 

 for this alone. 



In the general classification, Foerster's " Synopsis der Familien 

 and Gattungen der Ichneumonen" has been adopted. Conservative 



TRANS. AM. ENT. SOC. XXIV. (25) JULY, 1897. 



