8910 Insects. 
2. A series of black oblong spots along the subdorsal line. 
3. That the hairs are mixed black and white. 
4. The head black. 
5. Second segment brown, bordered with purple in front. 
In the following particulars the descriptions vary :— 
Ground-colour of upper surface yellow, Newman. Greenish yellow, 
Guenée. 
Claspers dingy yellowish white, Newman. Rather rosy, Guenée. 
In the next passage (Zool. 8694) we have a description of the larva 
of I. Geryon by Mr. Newman, which agrees exactly with the same 
writer’s description of that of I. Statices, except— 
1. Head black (omitted in description of I. Statices). 
2. Second segment dingy yellow in front, black and rather shining 
on the disk, which differs from M. Guenée’s description of the same 
part of I. Statices. 
3. The yellow of I. Statices is here dingy yellow, and there is this 
addition— 
4. “The sinuous exterior margin of the yellow stripes is bordered 
with black, gradually shaded off into reddish purple.” 
I have no description of the larva of I. Geryon by M. Guenée to 
compare with this, but, in his description of the larva of I. Statices, be- 
fore referred to, he has underlined those characters which, he says, 
distinguish it from I. Geryon. These, therefore, are all that we need 
consider, and are— 
1. The greenish yellow. 
2. “The black spot on each incision along the dorsal vessel.” 
3. The “black oblong spots along the subdorsal line.” 
4. The mixed black and white hairs. 
Now it is remarkable that these distinguishing characters, according 
to M. Guenée, are the very parts of the description which are altogether 
‘omitted by Mr. Newman, who holds the same opinion as to the 
distinctness of I. Geryon, but evidently could not regard these cha- 
racters as the specific distinctions, because he did not think them 
worthy of observation. What then are Mr. Newman’s specific dis- 
tinctions? I see no others but— 
1. The black head, which M. Guenée truly ascribes also to - 
I. Statices. 
2. The colour of the second segment, which beik could scarcely 
have intended to lay much stress on, as he does not describe that 
part in I. Statices. 
3. The dingy yellow, as disiigaished from the yellow of I. Statices ; 
