454 THE ENTOMOLOGIST. 
length, the head being brought slightly forward, and tucked 
in amongst the legs. Mancuntata:—In habits and shape 
precisely like Subsericeata, but, perhaps, a trifle more 
slender; ground colour dark brown, strongly tinged with 
chocolate, and without the ochreous markings so conspicuous 
on the 8th and 9th segments in Subsericeata; head marked 
as in that species, but duller in appearance; dorsal line also 
similar to Subsericeata, but the rust-like mark so conspicuous 
in that species is wanting in Mancuniata, but in one variety 
it is replaced (though in a different position) by two distinct 
white chalk-like marks; ventral surface as in Subsericeata. 
At the time I had my larve, my friend Mr. J. P. Barrett, of 
Peckham, also reared a brood of Subsericeata, and, as 
his notes differ slightly from my observations, I append 
them. In a letter dated October 25th, 1870, he says: — I 
received a drawing of Mancuniata from Mr. Doubleday this 
morning, and should like to know whether your notes agree 
with mine. The figure was taken by Mr. Buckler, in 1865, 
from Dr. Knaggs’ larve. I think it is of a darker brownish 
linge, in general, than my Subsericeata, and the black dots 
are more conspicuous. ‘The last segments are paler than the 
others, but appear to want the yellowish tinge that Subseri- 
ceata possesses. In other respects I can see no difference, 
either in size or shape.” On receipt of this letter I forwarded 
my Mancuniata larve to Mr. Barrett for comparison with his 
Subsericeata; and, in a letter dated October 28th, he says :— 
“JT am now quite satisfied that there is but very slight 
difference between the larvee of Mancuniata and Subsericeata ; 
I believe that you would scarcely be able to pick out the 
paler larva you sent, if it were placed in a batch of Subseri- 
ceata. The chocolate-brown one might readily be distinguished, 
but [ should not be surprised if Subsericeata varies similarly. 
You mention in your notes that the larve of Mancuniata are, 
perhaps, more slender than Subsericeata. I have noticed 
that in this respect my larve varied considerably, but I am 
scarcely prepared to say, though | suspect such to be the 
case, that the more slender larve produce the smaller insects, 
viz., the males. The figure before mentioned” (Mr. Buckler’s) 
“js taken from a larva as stout as any I have had. The 
chief point of distinction that I have noted is the ochreous 
marking on the latter segments, and, with respect to this, it 
