502 ]\Tr. R. Trimen on Mr. Millars Ex'pcrinimtal 
on the upperside of the wings—could not escape the 
notice of collectors in Natal, if it were anywhere numerous 
or frecpient in its appearance. 
On examining with a lens the photographed series — 68 
^ ^ and 55 $ ^— of the offspring of the two ^ ^ dcccptor, 
one is struck with the very slight amount of variation 
exhibited by either sex. Tlie specimens are so crowded 
in the photograph that the hind-marginal area of the hind- 
wings is more or less concealed except in the last example 
in each of the nine rows, and in the three next lower 
examples in the fourth row ; but it happens to be on that 
part of the upperside that most of what little variation 
there is occurs, viz. as regards the development or sup¬ 
pression of the incomplete hind-marginal series of thin 
white lunules, and sub-marginal series of 4-5 small white 
spots — of which the former alone sometimes appear in 
the while the latter accompany the former in many 
examples of the $. This variation is well shown in the six 
^ ^ and in six ^ ^ from the decc’ptor progeny forwarded to 
me by Mr. Millar. This constancy to type in so consider¬ 
able a number of offspring from two mothers is opposed 
to my long-held opinion that E. deceptor would prove to 
be conspecific with E. ivalilhergi and E. minia. Moreover, 
the full-grown larva of deceptor —as shown by the dried 
specimens and numerous cast skins just before pupation 
received from Mr. Millar—differs from those of the two 
other forms in having the cephalic horns black instead of 
yellowish-brown and abruptly clavate at the tip, and also 
in having the pale-yellowish segmental elevated half-rings 
much narrower and in places discontinuous between the 
expanded bases of the spines springing from them. Mr. 
Millar notes that these differences were constant in the 
whole number of dcccptor larvae reared. It is, however, 
worth recording that the first of these distinctions, viz. 
the blackness of the cephalic horns, has been observed by 
Mr. Millar to mark also an earlier stage of the larva of 
'walilbergi and mima, both head and horns as well as the 
body spines then being black. This is shown by a younger 
inflated larva-skin sent to me by Mr. Millar. 
Whether the living pupa of deceptor presents any notice¬ 
able difference from tliat of loahlhergi or mima I cannot 
say; Mr. Millar notes none; and a dead example and six 
skins of the former exhibit no distinctions that I can 
detect from three pupa-skins of wahlbergi and three of 
