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THE ENIOMOLOGIST. 



Vol. XX.] NOVEMBEE, 1887. [No. 294. 



ACIDALIA IMMORATA, L., A SPECIES NEW TO BRITAIN. 



ACIDALIA liUrOEA'J'A, L. 



On June 27th last, Mr. C. H. Morris, of this town, showed 

 me an insect, of which he bad just caught two specimens on 

 some heathy ground in this neighbourhood. When alive in the 

 chip-box the insect somewhat resembled the female of Fidouia 

 atomaria, to a form of which I hesitatingly referred it. Sub- 

 sequent examination of the two specimens (which proved to be 

 male and female) showed clearly that it was not that species, and 

 tbat it was evidently new to the British List. I have recently, 

 thanks to the assistance of Messrs. Waterhouse and Kirby, been 

 enabled to compare the insect with types of Acidalia immorata, L., 

 collected by Prof. Zeller, in the National Collection at South 

 Kensington, with which it agrees in every respect. 



Acidalia immorata, L., Syst. Nat. x. 528, is widely distributed 

 on the Continent. Staudinger's List gives the following dis- 

 tribution : — 



" Europe, Central and North— exclusive of the Polar Eegions 

 and England ; Italy, Bulgaria, Russia, Bithynia, Siberia, east 

 and north." 



It occurs in Holland according to Snellen, ' De Vlinders van 

 Nederlaud,' p. 5G3 ; and Berce, in ' Faune Entomologique 



ENTOM. — NOV. 1887. 2 M 



