distinction. With this view of the subject I have considered 

 the following British insects as forming one genus : 



* A PLOT A Step. 



1. palpella Hanio. 5^5. 2^.— Wood, pi. 40./ !249. 

 Anterior wings fuscous with 3 black dots, the usual stria 

 verj' obscure and paler. 



*' Found the beginning of July in a field of Trefoil near 

 Ripley." Step. III. 



** Palptjla Oc//. — Plurota Hub. 

 l^. Robertsonella Curt. Brit. Ent.pl. 655. ? . 



As this appears to be a new species, I have named it after 

 G. Robertson, Esq., who took it amongst Furz-bushes on 

 Wanstead Flats in July, and I am indebted to him for the 

 specimen figured as well as for darker varieties. Mr. Dale has 

 bred it, but unfortunately he does not remember the caterpillar. 



2. aristella Linn. Syst. Nat. 2. 894. 416. 



"Whitish, wings with a silvery line, palpi porrected, longer 

 than the head, furnished with a bristle." The palpi are 

 twice as long as the head and thorax : I believe it has only 

 been taken in Portugal. 



3. bicostella Li7m. — Hiib. 17. 1 15. — Tinea marginella Fab. 

 Anterior wings cinereous-white, costa fuscous, the margin 

 white. 



June, near Edinburgh, I believe; near Settle, Darent Wood, 

 Dover, New Forest, amongst iurz on Parley Heath, and also 

 at Winfreth, Dorset, Mr. Dale. 



4. marginella Alucita Fab. Ent. Syst. v. 3. B. 333. IS.— Don. 

 2. 58. 2. — striatella Hiib. 23. 154. — Clarella Treit. 

 Anterior wings ochreous, the costa and inferior margin pure 

 white. 



End of July, amongst the Juniper in Birch Wood, also at 

 Darent, Faversham, and Dover. 



5. parenthesella Linn. — semicostella Hiib. 59. 396. 

 Anterior wings fuscous grey; basal portion of the costa 

 white, with 2 obscure black dots on the disc. 



June, Blackheath ; end of July, Shooter's Hill, Kent. 



Rhinosia Oc/i.— Oxybelia Hiib. 



6. fasciella Hub. pl.lG.f.lU. 



Anterior wings ferruginous, with 2 obscure oblique fasciae. 



Beo-inning of June, amongst grass, and in barren places in 

 the New Forest; Walworth and Darent Wood in July; be- 

 ginning of August, Coomb Wood. 



The Plant, Andromeda polifolia, Wild Rosemary, was com- 

 municated by T. C. Heysham, Esq. 



