242 
EUPITHECIA TENUIARIA. 
Plate XXX. Figure 11. 
This insect measures rather less than three quarters of 
an inch in width. 
Male: fore wings pale grey, crossed with several dark 
waved lines, the outer margin darker grey, the upper 
margin with two reddish brown spots near the middle ; 
central spot black. 
Localities for this abundant species are York, Hale 
near Liverpool, Scarborough,Epping,Tintern,Monmouth. 
The perfect insect appears in June and July. 
The caterpillar is dull yellowish-green, the sides and 
the middle of the back tinted with rose colour, a row of 
very indistinct dusky spots along the back, run together 
in a black line on the last segment, and bordered by an 
interrupted black line. There is a row of slanting dull 
yellowish red stripes on each side, the head black. 
The date of the appearance of the caterpillar is in March 
and April. 
It feeds on the catkins of the sallow. 
The chrysalis is found in a slight cocoon, among earth, 
roots of grass, or moss; it is of a pale golden yellow colour, 
the thorax and wing cases tinged slightly with greenish. 
EUPITHECIA SUBCILIARIA. 
Plate XXX. Figure 12. 
This insect measures from rather under three quarters 
of an inch to that width in expanse. 
Male: fore wings dull yellowish-grey, crossed by 
numerous darker lines, the outer margin dark grey; third 
