288 THE ENTOMOLOGIST. 



anything approaching those described; and, being an entomologist 

 who pleads guilty to "a weakness for 'spots' and 'undersides'," 

 I fervently hope that Mr. Arkle will exhibit these remarkable aber- 

 rations at one or more of the Entomological Societies, and thus give 

 pleasure to many who, like myself, are interested in the variation of 

 species. — B. H. Crabtree ; "The Acacias," Levenshulme, Sept. 12th, 

 1901. 



Pterostoma palpina double-brooded. — I was much surprised, on 

 looking one morning last month in my breeding-cage, to find five 

 freshly-emerged specimens of the above-named species — two males 

 and three females ; and on visiting a friend near here a night or so 

 later I found that he had had the same experience with his. We have 

 made inquiries, and have come to the conclusion that the appearance 

 of a double brood, the imagos of which are about the normal size, is 

 most unusual. I may add that at the present time I have healthy 

 larvae feeding from a pairing of this brood. — A. J. Lawrance ; Bromley 

 Common, Kent, September 11th, 1901. 



Lepidoptera of Lewis. — Mr. H. McArthur, who has been collecting 

 in Lewis, the most northern island of the Hebrides or Western Isles of 

 Scotland, returned to London early in September. Although he found 

 sugar unattractive for moths, he succeeded in getting together a 

 most interesting collection. The series of one or two of the species 

 obtained are especially fine as regards aberration from typical lines, 

 and he has also secured specimens of some species not previously 

 recorded from the locality. We are indebted to him for an opportunity 

 of seeing the entire collection, but must defer further remarks thereon 

 until next month. 



Late Brood of Pachycnemia hippocastanaria. — On July 25th, 1898, 

 I took P. Mppncastanayia in the New Forest. The following year 

 (July 20th) several specimens were obtained by my father and myself 

 at Oxshott. These were all taken on heaths in the daytime. This 

 year we took two very fine fresh specimens (August 4th) at Woking by 

 searching the heather at night with a lantern. Is this insect regularly 

 double-brooded ? Of the four books I have by me, Meyrick gives May 

 only, as also does Morley. Newman says May, and in France a second 

 brood. Hofmann says July and August on the Continent, but, as he 

 also gives these months for the larva, there is probably some mistake. 

 One would be glad to know other collectors' experiences with this 

 insect. — F. M. B. Carr ; 46, Handen Road, Lee, S.E. 



I took a male specimen of P. hippocastanaria at Oxshott on 

 July 17th last, and was then under the impression that a summer 

 generation of this species was unusual. Mr. Barrett, however, in the 

 recently published vol. vii. of his ' Lepidoptera of the British Islands,' 

 states that emergence takes place in April and May, sometimes as 

 early as March, and that there is "a partial second generation in 

 August." In 'British and European Butterflies and Moths,' by 

 Kappel and Kirby, the time of the imago is given as "April to July." 

 Other authors consulted only give the date of spring brood. — R. S. 



Three generations of Selenia illustraria in one Year. — S. illas- 

 iraria being generally double-brooded, I thought perhaps the following 



