106 LEPIDOPTERA. 



and another at a similar attraction, by Mr. W. M. Christy, 

 at Emsworth on the borders of Susses and Hants. In the 

 same year it seems to have been found at Tunbridge Wells 

 and at Cambridge, and in the following at Guildford, occur- 

 ring also again at Dover. From this time it has increased in 

 numbers and in range, and is taken, either as moth or larva, 

 every year in some favourite spots in Surrey, Kent, Cam- 

 bridgeshire, Berks, and elsewhere. It has been found also 

 in the immediate vicinity of London — at Lee by Mr. B. A. 

 Bower, and at Woodford by Mr. Oldham — and has spread into 

 various parts of Essex, Middlesex, Hants, Herts, Leicester- 

 shire, and even Norfolk, several specimens having been 

 taken on the wing near Norwich by the Messrs. Tillett and 

 others. Doubtless it has reached many intermediate counties, 

 and there is good reason to hope that its rauge here will soon 

 be still further extended. In this connection it is interesting 

 to notice what has occurred abroad. Herr August Hoffmann 

 says, in the Entomologists' Monthly Magazine, that it was 

 known to be a common species in the South and South-east 

 of Germany, but until the year 1875 was not recorded from 

 the North-west of that country nor from the Netherlands. 

 In that year commenced its migration into those districts, 

 and in a few years it had been found in Hanover, Mecklen- 

 burg, Stralsund, Waldeck, and Hamburg; in 1882 it had 

 reached Arnhem in Belgium, and in 1887 Breda in Holland. 

 At the time of its appearance here it had been taken in 

 numbers in the last-named country. He noticed that even 

 the rough climate of the Hartz Mountains was insufficient to 

 check it, for he found larvae on the Aconitum plants in a 

 garden in the district of the Brocken, more than 2000 feet 

 above sea level. In 1890 M. Fallou, a veteran French ento- 

 mologist, announced that he had captured this species in 

 June of that year, for the first time in twenty years' residence, 

 in the neighboui'hood of Paris. It had been noticed in previous 

 years in the Centre and East of France. But according to 

 Duponchel it occurred early in the present century in 



