226 [September, 



Help-Notea towards the determination of British Tenthredinidce, Sfc. : cor- 

 rections. — Ilerr A. Klucker of Charlottenlund, Denmark, kindly calls my atlontion 

 to an error in my Tables of Genei-a published last month, which I siiould wish to 

 correct before it troubles my readers further. 



In section 41 the second alternative clause should read, " The two medial »«. 

 are received in different cells, or else the humeral a. is not petiolate." 



It would have been better to have had a simpler section 41, merely separating 

 off the Blennocampid genera from Dolerus, &c., by their petiolate humeral a. ; but 

 as it is, the above is the best way of rectifying tlie Tables that I can think of at 

 present. (In section 8 Calamenta is a mispi-int for Calanieuta). — F. D. MoRiCE, 

 Woking : August, 1903. 



Note on Dianthaecia irregularis. — It appears that D. irregularis is rarely taken 

 at large in the perfect state ; and consequently it may interest some of your readers 

 to hear tliat during the last week in June I was fortunate enough to take four 

 specimens in the immediate neighbourhood of Thetford. Two were of each sex, 

 and all but one were in absolutely perfect condition. I took them at dusk on the 

 edge of a field of sainfoin, interspersed with two species of Silene, injiata and 

 otites, and containing also a good many plants of the white campion {Lychnis alba), 

 though I did not notice particularly at which of these plants I took them. I tried 

 another field in which there was a large quantity of Viper's Bugloss, thinking that 

 there I should find the moth more abundant, but in that field it was " conspicuous 

 by its absence." — C. F. Tuoknewill, Calverhall Vicarage, Whitchurch, Salop : 

 July nst, 1903. 



Aphelia argentana in Norfolk. — The last fortnight of July, 1902, I spent at 

 Dilham, a little village a few miles from Worstcad, on the line from Norwich to 

 Cromer, and as I found Crambus perlellus in some numbers, an insect not represented 

 in my collection, I took a tolei-ably long series of it. I found it flying in the afternoon 

 in a sunny lane, and it also came to my lamp when I was collecting at night. When 

 I came to set the specimens I liad taken, I found that I had two species of moths 

 very similar in size and colour, but quite distinct in form, and when I returned 

 home I was able to identify the second moth as Aphelia argentana, a Tortrix, a 

 type specimen having been given me by a friend. I therefore, knowing nothing 

 about the species, put ray specimens into their place in my collection and thought 

 no more about them. Recently I mentioned the circumstances to Mr. Barrett, and 

 he expressed considerable doubt as to the possibility of my having taken the insect 

 in such a locality, as it is a mountain species, taken on the Continent in the Alps, 

 Germany, South-east France, Andalusia and Russia. It was first taken in this 

 country in 1875 on the side of a mountain at Athole, Perthshire, and has since been 

 found, I believe, in other mountainous parts of Scotland. Dr. F. Buchanan White, 

 who recorded his first captures in Perthshire (Ent. Mo. Mag., vol. xii, p. 85) men- 

 tions that the habits of A. argentana are more those of one of the Crambites than 

 of a Tortrix, and my impression is that I took my specimens (eight in number) 

 flying in the afternoon with C. perlellus in the lane I have referred to. Mr. Barrett 

 has seen them, and confirms the identification of tlie species. The last half of July 



