179 
The date of the appearance of the caterpillar is in Sep¬ 
tember. 
It feeds on the fir. 
The chrysalis is placed in a cocoon on the ground. 
HALIA WAVARIA. 
THE T-MOTH. COMMON V-MOTH. 
Plate XXV. Figure 11. 
This insect measures from a little over an inch to an 
inch and a quarter in expanse. 
Male : fore wings dull grey with a very faint tinge of 
purple. The first line dull black, and generally only con¬ 
tinued as a short dash from the upper margin; second line 
also dull black, generally short; central line dull black, 
and lengthened so far as to form, with the two others for 
the top, the centre of the letter T. There is, in some 
specimens, a continuation of it in a waved line inwards to 
the lower margin, on which is a small dark mark near the 
base of it. Hind wings dull grey, with two or three dark 
marks on the inner margin, and a blackish central spot. 
Localities for this species, which is very common in 
most places, are York, Oharmouth, Naiferton, Nunburn- 
holme, Brighton. 
The situations where it is found are gardens. 
The perfect insect appears in July. 
The caterpillar is pale green, with four waved yellowish 
white lines along the back, and a pale yellow line on the 
sides. 
