TRIFID^E. 171 



Lakva cylindrical, tapering a very little in front ; head 

 pale brown, streaked and mottled with black ; colour of the 

 back deep ochreous ; dorsal line pale sulphur-yellow bordered 

 on either side by a black line and well defined in its entire 

 length ; subdorsal line rather broad, of equal width, and 

 uninterruptedly black throughout, followed by a pale yellow 

 line finely edged below with black ; next is a stripe of pale 

 ochreous ; then another pale yellow line finely edged above 

 with black and followed by a broad stripe of deep ochreous 

 broadly edged with black both above and below, the black 

 spiracles being along the lower edge ; spiracular stripe dull 

 pale ochreous ; undersurface and prolegs slightly darker ; 

 pairs of black dots are visible on the anterior portion of 

 the back of each segment. 



Or, brownish-grey with all the lines and stripes less 

 distinct but all disposed in the order above described, the 

 yellow lines here represented by grey, and the ground colour 

 of the back brownish-grey; dorsal line grey edged with 

 black, the subdorsal a continuous line of grey-brown, edged 

 with blackish lines above and below, but interrupted above 

 and nearly continuous below ; lateral lines and stripes devoid 

 of black but delicately defined by brown edges. (W. Buckler.) 



April and May, on Triticum rcpens and other grasses. 

 Probably from the previous autumn, but in its earlier 

 stages this larva seems to have been much overlooked. 



Pupa of ordinary shape but not stout, the wing-covers 

 thickened behind and their whole surface covered with 

 minute incised sculpture, yet rather glistening; eye-covers 

 prominent, rounded, smooth and shining ; limb-covers glossy 

 but faintly sculptured with incised cross-lines; dorsal and 

 abdominal segments glossy, yet pitted with minute sculpture 

 on the front margins and more sparingly to near the hinder 

 edges : anal segment swollen and having a distinct cicatrice, 

 its cremaster tumid and thick, with a few fine bristles and 

 two rather straight black spikes; colour of the general 



