Pseudacraea eurytus hobleyt. 613 
The form of Ps. eurytus hobley:, mimetic of Pl. tellus, 
namely terra (Plate XXXV, figs. 2,4; XXXVI, figs. 11, 12), 
was the most abundant of all the forms, 104 being taken 
altogether. Of these, 39 males and 26 females corre- 
sponded with the type, while 6 males and 20 females differed 
only by having the tawny subapical area on the fore-wing 
suffused with white scales to a greater or less extent. In 
11 males and 1 female the black bar between the subapical 
and the inner marginal area was thinned or broken through, 
so that, in the most completely developed variety (No. 33 
in list: Plate XXXIV, fig. 7) there is one large tawny 
area on the fore-wing of irregular shape, and bordered 
with black. An even more extreme form from Damba 
Island is represented on Plate XXXVI, fig. 16. To this 
variety Griinberg has given the name impleta. 
TRANSITION IN BUGALLA ISLAND BETWEEN THE MIMETIC 
FORMS OF Ps. eurytus hobleyt. 
I now come to the most interesting points, which this 
paper is intended to demonstrate. It will be seen in the 
tabular statement (pp. 618 et seqq.) that there are very 
many forms of Pseudacraea eurytus hobleyi not belonging 
to any of the types, but described as transitional. 
(1) Between ¢g hobleyi with 2 tirikensis and obscura 
there are 45 of these intermediates, (2) between obscura 
and terra 37, and (3) between terra and ¢ hobleyi with 2 
turtkensis 74. 
Classes (1) and (3) are principally shown to be inter- 
mediate by the development in various degrees of the 
umber basal patch on the under surface of the hind-wing, 
a feature that is characteristic of the ¢ hobleyi and its 9, 
twrikensis, but is absent from the typical terra and very 
faintly represented, and of a yellowish tint in the typical 
obscura. In (3), the umber triangle may be bordered, on 
the site of the white band of hobleyi and tirikensis, with 
whitish yellow, much paler than the rest of hind-wing 
under surface of terra. Furthermore the transition towards 
the 2 pattern tirikensis in (1) and (3) is shown upon the 
upper surface by the whitish or whitish grey tint of the 
pale areas, especially the subapical bar, and, although to 
a less extent, the inner marginal patch of the fore-wing 
(Plate XXXIV, fig. 10; XXXV, figs. 3, 7, 8; XXXVI, figs. 
14, 15). A slight tendency towards transition between 
terra and hobleyi is also sometimes seen in an orange 
