518 Notes in 1887 upon lepidopterous larve, ce. 
5 exhibited apertures of a size to admit of emergence, but not 
larger. 
1 had been nearly half devoured. 
; 7] about three-fourths devoured. 
xa entirely devoured, except for the small part of the 
under surface by which they were fixed to the 
paper. 
= | 
He Ore 
The newly-hatched larva.— The body is very pale 
yellow, with a slight greenish tinge on the anterior part 
of some larve: the head is of a very pale, brownish yellow 
colour, and of rounded shape. Mr. Hellins describes 
the larve as ‘‘ at first white,’ (J.c.). The caudal horn, 
which from the first is held very nearly upright, is 
quite pale and transparent immediately after leaving 
the egg, but it very soon darkens and becomes black. It 
is very surprising that the deep colouring-matter of the 
ova should produce so little effect upon these pale and 
colourless larve. This is entirely contrary to my 
experience with Smerinthus ocellatus, in which I have 
observed that darker ova produce larve of a deeper 
ereen, and vice versd. (See ‘Journal of Physiology,’ 
vol. viil., 1887, containing ‘‘ Proceedings of Physiological 
Society,” pp. xxv and xxvi.). 
_ The newly-hatched larva when extended is 3°75 mm. 
in length, and there is very little individual variation. 
The newly-hatched larve of S. ligustri were found (J. c.) 
to‘be 5°25 mm. in length. When placed upon the food- 
plant, the young larve almost invariably rested on the 
underside of the leaf, stretched along the mid-rib (as in 
other Sphingide). A more minute description is better 
deferred until later in the stage; and will equally apply 
to the newly-hatched larva, except for a few points 
which will be obvious on comparing these with the 
succeeding paragraphs. 
The larva during Stage I.—Shortly after the first meal 
the larve became green, and by Sept. 12th they had 
acquired a glistening appearance quite unlike ariything | 
have hitherto seen in Sphingide. On Sept. 13th micros- 
copic examination of the two oldest larve shewed that 
the colour had extended to the blood, which was of a 
pale yellowish green colour in the claspers and other 
parts remote from the digestive tract. The lateral 
longitudinal tracheal vessel can be distinctly seen with a 
lens, upon each side of the transparent larva, and the 
dorsal vessel and Malpighian tubules are also plainly 
