YELLOW UNDERWINGS 



is of common occurrence, and often flies in the open 

 window to light during Summer evenings. The eggs 

 are laid on various kinds of low-growing plants (wild and 

 garden), and the brownish larva has yellowish lines 

 down the back, with bars of blackish on segments four 

 to eleven. The imago is greyish-brown on the fore- 

 wings, with bright yellow and black borders below. 



The Lesser Yellow Underwing is, as its name implies, 

 smaller than the last named, and is similarly coloured, 

 except for less ornate forewings, and the addition of a 

 dark mark on the upper part of the hind ones. The 

 colour and markings are, however, subject to considerable 

 variation. 



Broad-Bordered Yellow Underwing. — {Triphcena fim- 

 bria.) This species (Fig. 21) is on the wing during 



Ejrocui- bordered ydlou) uncieriovng'. rigil 



June and July, and is well distributed in wooded regions. 

 The larva feeds on various kinds of herbaceous and woody 

 plants in Spring and Autumn. The dark brownish pupa 

 has two short spikes at the extremity. The broad 

 border of dark brown on the hindwings, and deeper 

 yellow, distinguishes this species from its relatives. 

 Lesser Broad-Bordered Yellow Underwing. — {Triphnna 



57 



