NEW BRITISH SPECIES SINCE 1853. 41 



constantly in their respective localities— such as Leucania 

 putresce7iSf Afjrotis AslirvortJtii, Phlogophora Em'pyrea^ 

 Petasia nuheculosa, and many othei's. 



A iew have occurred only singly, and their appearance 

 may have been entirely accidental — such as Noctua flam- 

 matra, Acontia Solaris, Catephia Alchi/misfa, &c. 



Others again have occurred singly in several localities — 

 such as Leucania ViteUina (both at Brighton and in the 

 Isle of Wight), Leucania extranea (in the Isle of Wight 

 and at Lewes), and Slein^ha sacraria. 



The gradual way in which the last-mentioned insect has 

 come amongst us is one of the most curious features of 

 recent Lepidopterology. 



The first capture of this insect took place at Plymouth, on 

 the 28th September, 1857. It was thus noticed in the 

 *' Entomologist's Weekly Intelligencer" of October 31st, 

 1857:— 



" Extraordinary capture. — On the 2Sth of September 

 " my brother took, at a street gas-lamp in Plymouth, a 

 " Geometra, which I could not make out ; and Mr. Reading 

 " informed me that he considered it a new species. I for- 

 " warded a drawing of it to Mr. Doubleday, from whom I 

 '' learn that it is Aspilates sacralgia. Charles Rogers, 

 '^ 11, St. Andrew's Street, Plymouth; October \lth, 1857." 



And following this was the subjoined editorial note : — 

 *' \_Aspilates sacraria (a pale-yellow insect, with a purple 

 '^ stripe obliquely from the tip of the fore-wings to the 

 " middle of the inner margin,) was originally taken in 

 " Barbary. Thunberg, in 1784, records the species in his 

 *^ * Insecta Suecica ;' but its occurrence so far north has 

 " hitherto been doubted.] " 



