60 



The date of the appearance of the caterpillar is in July 

 and September. 



It feeds on the aspen, the poplar, and the birch. 



JNOTODONTA ZICZAC. 

 PEBBLE PROMINENT. 

 Plate XXXIX. Figure 5. 



Localities for this species are York, Scarborough, Brigh- 

 ton, Bromsgrove, Worcester, Norwood, Carlisle, Worthing, 

 Wavendon, Tenterden, Arundel, Preston, Manchester, 

 Stowmarket, Lyndhurst, Lewes, Huddersfield, Horndean, 

 Halton, Glasgow, Exeter, Cambridge, Birkenhead, Bristol, 

 Bisterne, Epping, Darlington, Newark, Sherwood Forest, 

 Bolton in Lancashire, Fort- William, Inverness, Burton- 

 on-Trent. 



The perfect insect appears in May, June, and August. 



The caterpillar is variously grey, violet grey, or reddish 

 brown, the three last segments reddish brown, the sixth, 

 seventh, and eighth with an angular prominence, and on 

 the sides are three pale stripes. 



The date of the appearance of the caterpillar is in June, 

 September, and October. 



It feeds on the poplar and the sallow. 



NOTODONTA TREPIDA. 



GREAT PROMINENT. 

 Plate XXXIX. Figure 6. 



Localities for this fine species are York, Doncaster, 

 Stockton Forest, Brighton, West Wickham Wood, Cocker- 



