‘248 
THE entomologist’s RECORD. 
larva is green of slightly varying shades, the thoracic legs even 
being green, and is so transparent that the tracheal trunks are 
easily seen. The general surface, at least dorsal to the spiracles 
(spiracles black with a white centre), is tolerably closely studded' 
with very minute black hairs, so minute that they do not inter- 
fere with the general green tone of the green portion, but they 
give a darker tone to the back, which is really a purplish- 
chocolate, rendered blackish-brown by these hairs. As Mr. 
Buckler notes, the posterior trapezoidals are placed more apart 
and to the front than is frequently the case ; there is, never- 
theless, a tendency to a sulcus between the anterior and pos- 
terior, forwards it is rather a depression behind the anterior, 
terminating against the posterior, on g it is very distinct, in 
10 it is marked, and in ii it culminates in the apparent 
division of the segments into two sub-segments between the 
trapezoidals, the posterior here being far behind the anterior. 
These are much smaller than in any other segment. 
On 10, and to some extent, in g, the posterior trape- 
zoidals have a greenish mark stretching across but not 
quite reaching the opposite one, suggesting a tendency 
to a lozenge-mark like that of adult alni. August iith. 
— 25 agree with this description, and several are laid up 
for moult, but three differ in being altogether smaller, 
especially in size of head and in plumpness. They are gj 
(barely 10) mm. in length, and two are laid up for mouU. They 
differ also in the character of the pale border to the dark 
dorsal band, which, especially in 6 and 7, has more of the 
character of the 3rd skin, and the dorsal line on 13 does not 
extend into 14. The head in the 3rd skin was black, here it is 
the same as others in 4th ; in one with pale peach, in the two 
others has only the tawny tips and green clypeus. It would 
seem that these mean to have a moult more than the others, 
which look as if the next skin might be the last, as they are larger 
than tridens was in the 4th skin. Tridens are now in 5th skin, 
and are much larger. August 12th. — Two of the three just 
noted have moulted ; most of the larger are laid up for 4th 
moult. August iz|th. — Two other (one since detected) small 
ones have moulted, also 12 or 15 of the larger, amongst these, 
one with a fine smoky tint overlying the green, altogether a 
very dark larva. In the 5th (last) skin, the larva often sits in 
rumicis attitude, but the bending of the anterior segments is 
more in the form of an arch and less of an angle at the 5th 
segment, the curve extending backwards to the 8th or gth 
