142 
The caterpillar is green tinged with reddish or yel¬ 
lowish on the fore part, the second segment brownish 
above; the head brown. 
The date of the appearance of the caterpillar is in 
April and May. 
It feeds on the leaf buds of the hawthorn and the 
juniper. 
ARGYRESTHIA SEMITESTACELLA. 
Plate CXY. Figure 7. 
Localities for this species are Scarborough, Market 
Harborough, York, Birkenhead, Darlington, Manchester, 
Pembury, Newcastle-on-Tyne. 
The situations where it is found are among beech 
trees. 
The perfect insect appears in August and September. 
ARGYRESTHIA SPINIELLA. 
Plate CXV. Figure 8. 
Localities for this species are Scarborough, Bristol, 
York, Darlington, Pembury, Manchester. 
The situations where it is found are among mountain- 
ash trees. 
The perfect insect appears in August and September. 
The caterpillar is greenish grey, w T ith a faint rose- 
colour line along the back, the second segment with 
two brown spots on it and the front edge whitish ; the 
head dark or blackish brown. 
