YELLOW FORM OF BREPHOS PARTHENIAS. 79 
(24) Lycia hyb. adkint = L. hyb. burrowst 3 X L. hirtaria 2. 
Very like pure hirtaria, as one would expect. 
(c) OrgeR ReEsvutts. 
I have interbred in the following pairings with satisfactory 
results. 
P. hyb. christiane 3 X P. hyb. christiane 2. 
P. hyb. robsoni 3 X P. hyb. robsoni ¢. 
(P. hyb. christiane 3 X P. christiane 2?) gx P. christi- 
ane Q. 
In all these three cases segregation on Mendelian lines 
occurred, but the numbers reared, except in the first case, were 
too few to admit of any conclusions being formed. 
In addition to the above, I got the cross Lycia hyb. felkeli 3 
x L..hirtaria 2. 
This produced fertile ova, but the little larve died in the egg. 
As soon as an opportunity presents itself, I intend to publish 
a detailed account of the above hybrids. The great obstacle to 
this is the impossibility of publishing such a great amount of 
material in a magazine. 
In conclusion, I can only repeat my thanks to the following 
friends for help with the ova of the pure species: Messrs. 
R. Adkin (Lewisham), G. Brooks (Friern Barnet), Anton 
Bulovee (Laibach), N. Criddle (Treesbank), EK. J. Denham 
(Acocks Green), H. E. Lauge (Freiberg), and to Herr Felkel 
(Innsbruck). 
YELLOW FORM OF BREPHOS PARTHENIAS. 
By H. Worstey Woop. 
Mr. Sackvitue recorded in the ‘ Entomologist’ for June, 
1912 (p. 181), the capture at Wimbledon of a yellow form of 
Brephos parthenias, and quoted ‘ Moths of the British Isles,’ u, 
p- 98, as to its rarity. From this locality in the same year, and 
again in the three following years, I took one example of this 
aberration. In addition to these one was taken by Mr. Pugsley 
in 1914, and in 1915 Messrs. W. Austin and H. J. Lee took one 
each. All these insects except Mr. Sackville’s, which I have not 
seen, were males. Last year the collecting ground was worked 
daily by a nuinber of my friends over the whole period of the 
insect’s emergence, but only those recorded above were seen or 
captured. The light under surface of this form gives the insect 
a totally distinct appearance on the wing, and it would be impos- 
sible for anyone having once seen it to overlook it. Of many 
hundreds of specimens caught, examined, and released last year 
