BOARMID.^E-SELENTA. Sj: 



the sides, and having- small bifid limiips; head small and 

 considerably ilatteued, purple or I'errug'Hious ; face shining, 

 paler or whitish ; general colour purplish-brown, shaded 

 and marbled with ashy-grey and dark brown ; hump on the 

 eighth segment dark brown, edged in front with black, and 

 having an oblique black bar on the sides below it ; incisions 

 between the eighth and ninth segments paler, often ochreous ; 

 on the middle segments broad, paler, inberrupted subdorsal 

 lines are visible ; undersurface purplish-grey ; space between 

 the prolegs whitish ; legs of the same colour or pale ochreous, 

 blacker in front. , 



June and July, and the second generation in September 

 and October, on birch, sallow, oak, ash, beech, alder, willow, 

 aspen, blackthorn and cherry, and will eat, if not provided 

 with these, almost all kinds of deciduous trees and shrubs, 

 raspberr}', bramble, honeysuckle and Cotoneaster ; feeding 

 principally at night, remaining on its food during the day, 

 and looking like a rough thick twig. Very easily reared, 

 particularly if sleeved-out in a secure gauze bag on a tree in 

 a garden. Mr. Merrifield has found it quite advantageous to 

 change the food from time to time, from birch to ash, alder, 

 or cherry. 



Pupa short and thick, almost stumpy ; the abdominal 

 segments rather drawn in and suddenly tapering ; brilliantly 

 glossy ; face distinctly knobbed in front ; leg-covers closely 

 compacted ; antenna-covers thick, prominent and faintly 

 sculptured in cross channels ; wing-covers very obscurely 

 sculptured in irregular lines, which do not afl'ect their 

 brilliant gloss; dorsal segments but little pitted, those of 

 the abdomen more so, but with a similar effect, their hinder 

 portions quite smooth ; cremaster exceedingly short, thickened 

 and corrugated, tipped with two short slender hooked spines 

 and some minute curled bristles ; general colour in front 

 dark purple-brown, dorsal and abdominal regions more deep 

 chestnut ; cremaster black-brown. In a very thin but tough 



