Pr! THE ENTOMOLOGIST. 
[I can offer no explanation of the discrepancy in time of 
appearance.—Edward Newman. | 
Larve of Bombyx Pernyi.—These larve manifest some 
disposition to attack each other when in confinement,—a 
circumstance rather unfavourable to attempts to breed the 
species on a large scale, with a view to an economic use of 
the cocoons. ‘The time of inactivity during the ecdyses is 
remarkable, in the case of some individuals, extending occa- 
sionally to seven days. It is compensated for by brisk 
jaw-work afterwards; for, through the latter part of their life, 
these larve seem to eat both by day and night. On the day 
before the cocoon is commenced they discharge from the 
mouth a good quantity of fluid, which is not, however, of an 
acrid character, but rather glutinous. It is sometimes emitted 
in less quantity, at an earlier period, if a larva is irritated. 
—J. fh. S. Clifford. 
[Notwithstanding my earnest desire to promote the science 
(if I may so call it) of Economic Entomology, I would venture 
to caution entomologists against attempting to rear the various 
Asiatic silkworms, which have verticillate larve and pyriform 
cocoons, on too extensive a scale: itis well to be certain that 
you are able to walk safely before you attempt to run. I have 
become cognizant of such repeated failures in the attempts to 
rear these silkworms that it seems needful to offer this 
caution. No sufficient cause for the mortality among these 
magnificent larve has yet been discovered. Such cause 
must not only be discovered, but removed, before extensive 
operations can be successful.—Hdward Newman.] 
Fidonia atomarian—On Sunday, October the 11th, while 
walking through Sherwood Forest, an insect flew across the 
path, which I took to be Cheimatobia brumata; but as I had 
not taken that species here I netted it to make certain, when 
it proved to be a male specimen of Fidonia atomaria. Is not 
that unusually late for this species to be on the wing?— 
S. L. Mosley ; Edwinstowe, October 20, 1874. 
Lupithecia Knautiala of Gregson.—Seeing Mr. Gregson’s 
description in the ‘ Entomologist’ (Entom. vii. 255) of a pug 
new to science (Ii. Knautiata), it may not be out of place to 
remark that I have known the locality where it is taken ever 
since I was a schoolboy, and remember, when birds-nesting 
on Bullshill, that heath grew there in abundance; and ata 
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