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specimens of nicaea only, comes to a conclusion that exactly agrees 
with my views. For Denso considers the occurrence of a dark line 
over the middle part of the wing, which appears from time to time 
(called by him fa, and running parallel to his median bar am) as 
an atavistic phenomenon. Now this line can scarcely be anything 
else than Bar III of porcellus, and therefore in my opinion may 
really be considered as the reappearance of an element of the 
original design. 
In truth this unexplainable confusion and contradiction in his 
views can be remarked in different passages of Drnso’s contentions: 
e.g. when he says in describing the /meata-design : “my investigations 
led me to assume, that /ineata and certain specimens of zygo- 
phylli show a design, that very nearly approaches tbe original 
Celerio-pattern. In fact, when drawing the contours of the lineata- 
design, they completely include the elements of the pattern of all 
remaining species of Celerio, these latter therefore appearing to be 
due to the more or less far-reaching reduction of the original design. 
This may be demonstrated by Fig. 2”. 
Fig. 2. (Copied after Denso). 
Now in this figure we remark, how lineata, besides showing the 
V-diagonal, possesses only a single vestige of a bar (1) along the 
external wing-margin, and therefore next to nothing of the original 
design, while in ewphorbiae on the contrary the remains of at least 
four transversal bars are present along the front-margin, though in 
truth only in the shape of isolated blotches. Were we obliged to 
share Denso’s views, we should have to assume that self-colour is 
