Committee would be welcomed. If the Tentamen be accepted and 

 the "first species" principle obtain, it will be necessary to drop 

 Argynnis Fabr. in favor of Dryas Hbn., both having as type paphia; 

 if not accepted Lemonias Hbn. and Rusticus Hbn., at present used in 

 our N. Am. lists, must be omitted and other generic terms applied. 



We have not attempted to determine whether the various genera 

 here included are tenable from a scientific standpoint but merely note 

 the results as far as possible on the generic names (as used in Dyar's 

 List) due to a change of type. These results we have placed in the 

 form of foot-notes ; chief among the changes would be the validity of 

 Colias, Apatura, I'^ancssa, Pyramcis and Pyrgus in the old accepted 

 sense, the falling of Mclitaca and Hcspcria into Grote's family Riodi- 

 nidae and the replacing of Paniassiiis by Pieris. Further radical 

 changes would be brought about in the Lycaenid group, the generic 

 types being often changed from the "blues" to the "coppers" and vice 

 versa ; as, however, this group is in need of a careful generic revision 

 in order to definitely ascertain the status of many so-called genera, a 

 change here would not be of such great moment. 



Whilst some of the above changes would appear very advisable, 

 others again, especially the superceding of Pantassiiis by Pieris. are 

 very undesirable; it would almost appear as if the best way out of the 

 difficulty in the case of the Diurnals at least, where no general re- 

 vision has of late been attempted, would be the preparation of a list of 

 genera, with definite types stated, that would under all circumstances 

 remain valid. Such a list, however, should be very carefully prepared 

 and only intrusted to the hands of a committee of International spe- 

 cialists. 



In conclusion we might state that the contention of the opponents 

 of the "first species" plan of fixing types that injustice would be done 

 to previous authors by disregarding their work has proved to be very 

 poorly sustained as far as Scudder's work is concerned. In nearly 

 every instance Scudder has chosen some one species as type in a purely 

 arbitrary manner, giving no reason for so doing ; in fact it appears that 

 he has, where possible, chosen N. American species as types largely on 

 account of his familiarity with them. A disregarding of such meth- 

 ods cannot, it appears to us, be considered as an act of discourtesy to 

 the author ; the old genera were, in the light of modern ideas, so in- 

 sufficiently characterized that the generic definitions must practically 

 be disregarded, and when we have in the "first species" principle an 



