It feeds on the stems and branches of the poplar, 

 the aspen, and, it is said, the beech. 



SESIA BEMBICIFORMIS. 

 T.TJNAR HORNET SPHINX. 



Plafe VI. Figure 8. 



THIS insect measures from one inch and not quite a 

 quarter to one and three quarters. Male: front wings 

 transparent; the upper edge yellowish brown; the outer 

 edge brown. Hind wings also transparent, the fringes 

 yellowish brown; the head dull black; the thorax the 

 same, with a yellow collar; the body bright orange 

 yellow, the first and second segments black, as is the 

 hinder margin of the third and of the fourth, the re- 

 mainder of the last-named dark reddish brown. 



Localities for this species are Canterbury, Darenth 

 Wood/and near Hammersmith, Cambridge. Scarborough, 

 York, Manchester, Preston, Newcastle, Dudley, and 

 Coventry. 



The situations where it is found are osier and willow 

 beds. 



The date of the appearance of the perfect insect is 

 in July. 



The caterpillar is dull white with a brown spot on 

 each side. 



The dates of the appearance of the caterpillar are 

 from September to May, when it turns to the chrysalis 

 state. 



It feeds on the stems and branches of the sallow. 



