BROAD- BORDERED MOTH. 115 



warm, but not very dark brown. A few pale 

 bands and marks occur on the wings, as may be 

 seen by reference to the figure. At the base of 

 the hind-wings is a large patch of bright orange, 

 then comes a broad belt of deep black, and on 

 the hind margin is a narrow band of the same 

 orange as that of the base. The abdomen is 

 also orange. 



The caterpillar of this Moth, though tolerably 

 common, is never seen except by those who are 

 skilled in this department of natural history. It 

 feeds on several trees, of which the birch is the 

 favourite, but spends the whole of the day 

 beneath the ground, and only comes out after 

 dark, when it ascends the tree and feeds on the 

 leaves. The colour of this larva is pale brown. 

 The Moth appears during the early summer, and 

 remains visible for at least three months. 



On Plate VIII. fig. 5, is shown the second 

 species of this genus, the Large Yellow Under- 

 wiNG {TriphcEna Pronuha). 



This is also rather a variable insect in point 

 of colour, the fore- wings being brown, sometimes 

 lighter and sometimes darker, diversified with 

 markings almost as variable in form as they are 

 in colour. The hind- wings are orange yellow, 

 and have a moderately broad black band running 

 I 2 



