phycidjE. 93 



Description of larva by G. T. Porritt (Ent. xvii. 143) 

 is almost identical. 



Baron v. Nolken describes the larva as dirty reddish 

 brown, with a shining blackish-brown head and divided 

 dorsal plate ; in flowers of Tanacetum vulgare. ' 



Homceosoma binaevella, Hb. 



pdreUa, II.-S. 



(Plate 11. fig. 1.) 



Loc. Exeter, Bristol, Merton, Brandon, Tenby, 

 Hastings, Southend, Folkestone, Pembroke, Howth. 



Common in the south of England in July. 



The larva feeds in the seed-heads of thistle {Carduus 

 lanceolatus) . When full-fed it leaves its food-plant and 

 spins a tough brown cocoon in which it hybcrnates, 

 pupating in the following spring. 



The ground-colour of the larva is pale green, be- 

 coming paler towards the ventral surface ; dorsal and 

 subdoi'sal stripes pink ; spiracular stripe also pink but 

 interrupted; head bright chestnut; dorsal plate greenish 

 in front, pale brown behind; anal plate blackish. 



E. M. M. XV. 181. 



Homceosoma senecioniSj Vaughan. 



(Plate 11. fig. 2.) 



Loc. Stapleton, Norwich, Folkestone, Southend, 

 Dover, Chattenden. 



Occurs in May and July. 



This species is distinguished from nebuIeUa by its 



