254 



The date of the appearance of the caterpillar is in 

 June, August, and September. 



It feeds on the willow, principally the (Salix ligna,) on 

 the underside of the leaf. 



CEMIOSTOMA SPARTIFOLIELLA. 

 Plate CXXVII. Figure 17. 



Localities for this species are York, Scarborough, 

 Pembury, JNewcastle-on-Tyne, Manchester, Kingsbury, 

 Darlington, Cambridge, Bristol, Birkenhead. 



The situations where it is found are among broom. 



The perfect insect appears from the middle of June to 

 the end of July. 



The caterpillar is greenish. 



The date of the appearance of the caterpillar is in 

 April and May. 



It feeds under the bark of the broom. 



CEMIOSTOMA LABURNELLA. 

 Plate CXXVII. Figure 18. 



Localities for this species are Cambridge, Kingsbury, 

 Manchester, and near London. 



The situations where it is found are among laburnums. 



