112 EHOPALOCEEA. 



divisible into three tribes— the Theclidi (Hair-streaks), the Cupididi (Blues), and the 

 Chrysophanidi (Coppers). Does Eumceus fall into either of these, or should it form 

 a distinct and equivalent tribe X And if the last, to which of the others is it most 

 nearly allied \ 



The differences between the three tribes mentioned are mainly found in the structure 

 of the antennal club, of the subcostal nervure of the fore wings, and of the tip of the 

 male tarsi. In the two latter points Eumceus agrees very well with the Theclidi, but 

 with neither of the others, having two and not three superior subcostal nervules, and, as 

 already stated, a pair of curving spines at the tip of the tarsi, a little larger than the 

 straight preapical spines. In the structure of the antennal club it also more nearly 

 approaches the Theclidi than the other tribes, but is peculiar in its apical tapering, the 

 diminution in size affecting five or six joints. It also differs strikingly from all the rest 

 in the break in the vein closing the discal cell in both wings, and in the horizontal 

 position of the nearly straight middle joint of the palpi. It is therefore evidently 

 separated from either of the three groups more widely than they are from one another, 

 forcing us to consider it a distinct group from any, while its affinity to the Theclidi 

 will not allow us to look upon the group as of equal value to the three together. The 

 logical conclusion is that, like them, it forms a tribe of Lyceeninse, related on the 

 one hand to its other tribes through the Theclidi, and on the other hand to the 

 Lemoniinse. 



The early stages lead to nearly the same conclusion, so far as they can help us. 

 Certainly the caterpillar is very different from any of the known Lycseninse, though it 

 is somewhat allied to the Chrysophanidi, through Feniseca, by its comparatively large 

 head and arrangement of fascicled hairs. It is in this phase of its structure that its 

 affinity to the Lemoniinse is most evident. In its chrysalis stage, however, Eumceus is 

 clearly Lycsenine, and again shows its relationship to the Theclidi in the structure of 

 the minute scattered dermal appendages. These in the Chrysophanidi are fungiform ; 

 in the Cupididi they consist of uniformly tapering hairs, abundantly provided with 

 minute spicules diverging from the hairs at right angles; in the Theclidi they form 

 cylindrical equal hairs, tapering only at the tip, and the spicules with which they are 

 profusely provided diverge from the stem at right angles ; while in the Eumseidi they 

 are equal, compressed, twisted ribands, tapering only at the extreme tip. 



