2 



The caterpillar is green minutely dotted with white, 

 with seven or eight slanting white bars on each side, 

 bordered above with darker green ; the head has a yellow 

 border; the tail is blue, tipped with dull green, or blackish. 



The date of the appearance of the caterpillar is from 

 August to September. 



It feeds on the willow, the sallow, and the poplar, but 

 will also eat the apple, the sloe, the peach, and the almond. 



SMERINTHUS POPULI. 



POPLAR HAWK-MOTH. 



Plate I. Figure 2. 



THIS insect measures from about three inches to rather 

 over four. Male: front wings much indented on the out- 

 side, grey, with a faint tinge sometimes of lilac, and clouded 

 with pale brown; a broad bar of olive-green brown crosses 

 the wings, with a light oblong mark in the middle of its 

 tipper portion, and beyond it, after a stripe of the ground 

 colour, the outer margin is darker also, but divided half- 

 way up by the grey. Hind wings somewhat indented, grey, 

 dull red at the base, and with two narrow waved stripes 

 of greyish-brown between it and the outer margin. 



The female is generally paler than the male. 



Localities for this species, which is extensively dispersed 

 throughout the country, are, among others, York, Ordsall, 

 Huddersfield, Nafferton, Brighton, Cambridge, Exeter, 

 Edinburgh, Lewes, Birkenhead, Durham, Weston-Super- 

 Mare, Llanelly, Manchester, Shrewsbury, Teignmouth, 

 Preston, Darlington, Stowmarket, Wavendon, Plymouth, 

 Oxford, Bristol, Blandford, Glasgow, Epping, Leicester, 

 Scarborough, Kingsbury, Bamsgate, Teriterden, Halton, 

 Truro, Barnstaple, Lower Guiting, Worthing, Lyndliurst, 

 Winchester, Burton-on-Trent, Southport, Duddingston, 

 Falmouth, Ashford, Faversham, Canterbury, Rotherham, 

 Bistern, Wells, &c. 



The dates of the appearance of the perfect insect are 

 from the latter end of May, through June and July, and 

 even in August and September. One on December 13. 



