CATALOGUE OF MOTHS. 253 



Though I have few records of the occurrence of this species, 

 I have no doubt it is common in both counties wherever the 

 food plant, Rhinanthus Crista-galli (Yellow rattle), is found, 

 and that grows almost everywhere. Mr. Bolam says, ''Occurs 

 along with the last, upon our sea banks, but perhaps less 

 frequently. I have also seen it at Langleyford " (Trans. Ber. 

 Pield Club, vol. xv., p. 300). Mr. Finlay reported it as 

 generally distributed and common in all parts of his district. 

 Mr. Hedworth got it plentifully in all parts of the Derwent 

 Yalley, and other collectors there find it common also. Mr. 

 Greenwell took it commonly about Bishop Auckland, and Mr. 

 Sang took it at Dinsdale near Darlington on 3rd June, 1858. 

 About Hartlepool it is very abundant. It flies late in the 

 afternoon, and I have seen the males assemble in hundreds 

 where there was a newly emerged female, sitting all around on 

 the grass stems like little white flags, or fluttering round, 

 although she had already found a partner. It was a sight not 

 to be forgotten. It is easily disturbed at any time, when it 

 will fly a short distance and settle again. 



95. E. decolorata. Hub. Sandy Caepet. 



Emmelesia decolor ata. Staint. Man., vol. ii., p. 81. 

 ,, „ Newm. Brit. Moths, p. 114. 



Hydriomena ,, Meyr. Hdbk. Brit. Lep., p. 219. 



Larva. Buck., vol. viii., pi. cxxviii., fig. 4 ; 0. Wils., 



pi. xxiii., fig. 8. 



Widely distributed but very local, and not abundant where 

 it occurs. It is in the Twizell list; Mr. Pinlay found it in 

 Meldon Park, but never common ; Mr. Ehagg took it about 

 Newcastle. These are all the ^Northumberland records. The 

 Bishop Auckland collectors report it as fairly common in their 

 district. Mr. Gardner says, ''Hezleden Dene, not unfrequent." 

 I have taken it there, and also in lanes, &c., about the town 

 almost always singly. I have no doubt it occurs in many other 

 parts of both counties. 



