466 Prof. E. B. Poulton’s Notes on 
ness of Mr. J. J. Joicey I have been permitted to study 
the four Kirby types in the Grose-Smith collection— 
limbata and marginalis, both males, from the Cameroons, 
tenera and similis, both females, from Gaboon and 
Ashanti, respectively. Aurivillius (“ Rhop. Aethiop.,”  p. 
269), considers limbata a synonym of lenera, and marginalis 
of similis, which also ‘‘ =? tenera.” Dr. Eltringham and 
I entirely agreed with this last suggestion which would 
sink the other three names to fenera. We had not the 
slightest doubt that all four are conspecific and only 
differ in variable features of the pattern. In fact so far 
as the male types are concerned there was no difference 
at all worth mentioning, both types coming from the same 
locality, marginalis being slightly the larger and paler of 
the two, the latter distinction apparently due to its being 
a little more worn. The two female types differ in a 
variable feature—the black margin of the hind-wing 
upper surface—that of tenera being narrow and _ inter- 
rupted, forming a beaded Mylothris-like border, the beads 
developed at the ends of the veins, the interruptions 
internervular. The under surface of both wings is similarly 
beaded, but this is a common feature in all forms of the 
species. The name similis may be conveniently retained 
for female forms of tenera with the black margin of the 
hind-wing upper surface continuous and not beaded. 
This form is evidently much commoner than the type, 
and 13 out of the 14 Oni females belong to it, the 14th, 
with its black margin reduced to scattered dots but not 
beaded, being transitional to the tenera Q form. The 
whole of the 31 males are fresh, bright specimens, precisely 
like the type of limbata except for the absence in the latter 
of a small central black spot on the hind-wing under 
surface. In fact, the Oxford series entirely supports 
Aurivillius’ conclusions. There is no doubt that the four 
types of Kirby are a single species, and that all the Oni 
males are limbata (a synonym of tenera), while all the 
females but one are the similis 2 form of teiera, the excep- 
tion approaching the fenera 2 form. 
When a long series of males and females of Citrinophila 
tenera are compared together certain extremely interesting 
differences are revealed. In the females the orange eround- 
colour is paler and yellower, the black margin of the fore- 
wing upper surface does not “extend along the basal section 
of the costa (noted by Eltringham in “ African Mimetic 
