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Insects. 9067 
ease, and covers them with down, which is used by the young larve 
in constructing their first cases. 
4, As to the Moulting of the Larve of the Genus Lithocolletis.— 
At page 125 of the ninth volume of the ‘Entomologist’s Weekly 
Intelligencer, there is an article, written by Mr. Scott, entitled 
“Curiosity,” in which that gentleman asks the following question, 
* Do the larve of Lithocolletis moult as other larve with which we are 
acquainted do? if so, what becomes of the cast-off skins?” Now, 
from close inspection of the mines of the following species, namely, 
Lithocolletis pomifoliella, L. corylella, L. spinicolella, L. Faginella, 
L. carpinicolella, L. tenella, L. sylvella, L. Emberizepennella, L. Schre- 
berella, L. trifasciella, L. Massaniella, and various oak-feeders, I can 
answer that they do moult, not only once, but twice: a careful search 
amongst the “frass” in the larva’s mine will disclose the presence of 
two cast-off skins concealed therein. 
CHARLES HEALY. 
74, Napier Street, Hoxton, N. 
Life-Histories of Sawflies. Translated from the Dutch of M. Snellen 
van Vollenhoven, by J. W. May, Esq. 
(Continued from page 8792). 
ATHALIA SPINARUM, F. 
Fabr. Syst. Piez. p. 26, f.21. Panzer, Fauna Germ. 59, f.18. Athalia 
centifolie, Hartig, Blatt-und Holzwespen, p. 284, No. 1. 
Lepel., Monogr. p. 24, No.71. Menzel, Ueber den Afterraupen- 
JSrass der Weissritbenblattwespe (no date or publisher’s name). 
J. Curtis, Farm Insects, p. 37 et seq. 
Athalia rufo-flava, capite cum antennis, excepto ore, mesothoracis 
dorso, tibiarum tarsornmque apicibus nigris. 
The first four of the above authors have confined themselves to the 
description, and, in the case of Panzer, to the representation of the 
imago; the two following have, in addition, given some account of the 
damage done by the larva to the turnip crop. Now although the 
history of this sawfly may be said to be sufficiently investigated and 
made known, especially since the appearance of Curtis’s book, we 
could not pass over this insect in a description of our native Tenthre- 
_donide, first, because we propose, if possible, to take in hand all the 
