16 GROTE — SPECIALIZATIONS OF LEPIDOPTEROUS WING. [Jan. 20, 



contained in Mittheilungen aus dem Rooner-Museutn, Hildesheim, 

 No. 8 (February, 1897). 



On primaries vein ivi is radial or radially inclined, 

 vein iv, is cubital. 



No traces of cubital cross-vein .... PARNASSiiDiE. 

 Radius four-branched, specialized Parnassiince. 

 Radius five-branched, generalized Zefynthiance. 



Traces of cubital cross-vein Teinopalpid/e. 



On primaries vein ivi from, at or near middle of 

 cross-vein: vein ivg from the lower outer cor- 

 ner of cell equidistant, or nearly so, between 

 iVi and iv.,. 



A cubital cross-vein reaching vi or vii . Papilionid^. 



Fam. I. Parnassiid.^. 

 Subfam. i. Parnassiince. 



The radius is four-branched, specialized. There appear to be only 

 two genera in this subfamily, since Dori/is, with the type 7nnenio- 

 syne, does not seem distinct from Parnassius, with the type apollo. 

 These two genera may be separated as follows : 



Vein ivi from radius beyond the cell . . . .1. Parnassius. 



Vein iv.> from cross-vein 2. Hypermnestra. 



Parnassius apollo. 



In all the species of Parnassius I have yet seen, vein 

 ivi issues from radius, but since in the succeeding group this 

 vein is fluid in Zerynthia, the character may not always hold. 

 In both apollo and mnemosyne vein iii2 arises a little before the 

 point at which the cross-vein joins the radius, but, in Hypermnestra, 

 at this point. I have been hitherto in error as to the absorption 

 of i and ii at base in Parnassius. The lower vein is partially de- 

 generate, but distinctly present in both apollo and 7?ineniosyne. My 

 figures must be corrected in this respect. This Papilionid feature is 

 then retained throughout the group. It is the lower branch, the 

 base of vein ii, which here seems to fade away. The upper branch, 

 vein i, is united by a cross-vein, according to Comstock, with vein 

 ii in Papilio. This short cross-vein appears then to become fused 

 with and a continuous part of vein ii, its real base, while all that 

 remains of it is the^' prsecostal spur." This maybe the true termi- 



