The caterpillar is of a green colour, dotted with yellow, 

 and with seven slanting yellowish-white lines on the sides. 

 The tail is yellowish above, and reddish underneath. 



The date of the appearance of the caterpillar is in 

 August and September. August 22nd. 



It feeds on the different species of poplar, as also on the 

 sallow, the laurel, the laurustinus, the aspen, and the birch. 



This species varies considerably in colour as well as in 

 size; some specimens being of a yellowish brown, more or 

 less deep, and others of deeper or lighter grey. One has 

 been known without the red mark at the base of the hind 

 wings, and four instances have occurred in which the 

 wings on one side have been those of the male, and on the 

 other those of the female, and the antenna? likewise 

 divided in the same way. It has been known to pair 

 with S. ocellatus and S. ligustri. 



SMERINTHUS TILIJE. 



LIME HAWK- MOTH. 



Plate I. Figure 3. 



THIS insect measures variously from about two to three 

 inches in the expanse of the wings. Male : front wings of 

 a greenish grey, or brown, with a broad angular bar on 

 the centre, in some individuals continuous, and in others 

 more or less interrupted, of olive green; over the tip is 

 a patch of light buff with very pale green; hind wings 

 rather light fulvous brown, with a broad dark dull brown 

 bar, more or less distinct, running from the outer to the 

 lower corner, near which it ends in a blackish spot or 

 mark. The wings are much scalloped or indented on 

 the outer margins. 



Localities for this species are Bromsgrove, Worcester, 

 Bristol, Cambridge, Kingsbury,Teignmouth,andnear Lon- 

 don, Ramsgate, Ashford, Canterbury, Chilham, Faversham, 

 Rugby, Chingford, Blandford, Lower Guiting, Wavendon, 

 Stowmarket, Exeter, Dorchester, Lyndhurst, Epping, &c. 



