IIEFERRED TO THE GENTJS EUPLCEA. 



291 



In his paper " On tlie Generic Names proposed for Butterflies," 

 Mr. Scudder regards Danais similis as the type of MupJoea, his 

 argument being briefly as follows : — The Tabrician species are E. 

 plexippus, E. similis, and U. core; E. plexippus is the type of 

 Danaida, Latrcille, and E. core of Grastia, Hiibner ; therefore^. 

 similis must be accepted as the type of Eitploea. 



Since no structural distinction between the green-spotted and 

 tawny species of Danais has, to my knowledge, ever been pointed 

 out, it would create hopeless confusion to accept this conclusion of 

 Mr. Scudder's ; for then we should have to call Danais " Euploea,^^ 

 and sink the Danaida'^ of Latreille (plural form of the same) as 

 a synonym ; I therefore would propose that the general usage of 

 the Fabrician name be retained. 



In Mr. Scudder's revision of the genera he frequently super- 

 sedes a name long in use by the resuscitation of a partial synonym — 

 that is to say, he knocks over such a genus as Euploea (or, at any 

 rate, its long-accepted use) by the restoration of a name applied 

 to two of its many species. This alteration is in such cases not 

 a help, but a great hindrance to the advancement of science, 

 almost as much so, indeed, as his departure from the rule of the 

 British Association respecting the use of the terminations ides 

 and ince for families and subfamilies, for the sake of adopting 

 the long-forgotten terms Ast//ci, Burales, Candidi, and a host of 

 others. 



For some of the genera Mr. Scudder objects toHiibner's names 

 because of the heterogeneous character of the material associated 

 under them by their author ; whereas in the case of others {Citlice- 

 rias, for instance) he selects the only species which ought to have 

 been omitted by Hiibner as the type, thereby retaining a generic 

 name which, of all others, ought to be shelved, to the overthrow 

 of a properly defined recent genus. "Where such partiality is ob- 

 served in the adoption or rejection of names, it is impossible 

 altogether to follow this author. 



It is my opinion, then, that E. core should, as liitherto, be re- 

 garded as type of the Fabrician genus, and E. climene (placed 

 with it by Hiibner) as type of Crastia. 



I propose to adopt the genera Salpinx and Trepsichrois of 

 Hiibner, to fix the limits of my genus CalUplosa, and to add a 

 genus for the reception of all those species the males of which 

 have two brands upon the interno-median area of primaries : for 

 this group I propose the name Stictoploea. The use of the brands 



