PLATE XX. 



Smerinthus ooellatus. 



1 9 1 a, lb, larva after last moult; the larva (1 a) 

 was found on dwarf willow on sand-hills, near Instow, 

 North Devon. 



See pp. 99—103. 



Smerinthus populi. 



2, 2 a, 2 b, 2 c, larva after last moult. 



See pp. 20—22 and 103, 104. 



Smerinthus tilim. 



3, 3 a, 3 b, larva after last moult. 



See pp. 105—107. 



