420 Mr. W. J. Kaye’s Notes on the dominant Miillerian 
upper-side, but again on the under-side there is a most 
interesting minor piece of variation, It is that there are 
indications of the formation of a black patch in the centre 
of the wing by the presence of a long black streak between 
veins 6 and 7 extending inwards towards base of wing. 
From 32 specimens examined the following are the tabulated 
results :— 
Under-side with black streak well developed 
6= 19 
Under-side with black streak slightly developed 14 = 44 
Under-side without black streak 1231 
Okatag 
Thus no less than 63 °/ show some slight development 
towards the pattern of Melinwa crameri on the under-side, 
The other Melinxa, M. mnasias, is only represented by 
a single specimen and is probably only a wanderer to the 
Potaro district, its home being further south on the 
Amazons. As a link with the Ceratinias it is extra- 
ordinarily close, and indeed when sitting with closed wings 
would be even passed over by a skilled collector, so alike 
is 1t to a large Ceratinia euclea. 
Mechanitis pannifera. 
This is a most variable species and is very common. 
The $ is apparently quite rare compared to the male 
as I find I have only three in a series of 56 examples. 
The likeness however of these females, and one in 
particular, to the darkest forms of Melinwa mneme is 
extraordinary, for not only is the pattern and marking 
so close but the greatly enlarged size give the insect a 
look much more in general like the Melinzas than the 
smaller and narrower MMechanitis species. 
The 56 specimens divide up as follows :— 
UPPER-SIDE. UNDER-SIDE. 
| F 
Hind-wing with a well-defined 
band, 2% 6— 10, 18 = 32 7 
Hind-wing with the band pa rtly ; 
obscured. 26 = 46 % 35 = 63 7% 
Hind-wing with the hand w wholly 
Gbseureds.. (2. ces berene a 94 — 44 ¥ a= ol, 
56 56 
