148 . THE ENTOMOLOGIST’S RECORD. 
it must be concluded that Duponchel’s and Zeller’s insects are the same 
Species. 
In May, 1916, Mr. Ebray Sich took a fine ? with this spot clearly 
marked, at Northwood, Middlesex.. This specimen was shown to Mr. 
J. H. Durrant, and it was then seen that several specimens in the ~ 
British Museum collection exhibited this spot or traces of it. There is 
no doubt that quadripunctella, bipunctella, and morosa are merely forms 
of the same species. Had Zeller had a good series of this insect he 
would not have written the long note he appended to his description of 
morosa. 
The pale spots vary in size, shape, and distinctness. I have seen 
British specimens of all the five forms mentioned here. The subjoined | 
key many be useful. 
1. Spots 2 and 38 conspicuous, there may be traces of other spots 
. , quadripunctella, Fab. (Fab., Species Insect., ii., p. 298, 52, 1781). 
2. Spots 1 and 2 conspicuous, 38 may be present, if so connected | 
with 2. . ab. bipunctella, Dup. (Dup., Hist. Nat. Lep., Suppl., iv., pp. | 
513-524, pl. 89, f. 9., 1844). 
3. Spots 2 and 4 alone present . . ab. morosa, Zell. (Zell., Linn. 
Fint., vi., p. 181, 1852). 
4. Spot 2 alone present . . ‘‘ab. b” of Zeller. This may be called ab. 
unipunctella. 
5. Spots 1-5 all visible .. This may be called ab. quinquepunc- 
tella n. ab. 
Hybrids of Zygaena filipendulae and of Z. lonicerae. 
By Hon. H. ONSLOW. 
In an interesting note in the April number of the H'ntomologist’s 
Record, Mr. Bethune-Baker came to the conclusion that “ any species : 
of Zygaena found no difficulty in copulating with any other species.” 
This refers to continental races in the wild state, which of course is a | 
very different set of conditions from those experienced in artificial 
breeding. 
Some observations on an attempt to breed hybrids between Z. fili- | 
pendulae and Z. lonicerae in 1916-17 may not, however, be without 
interest. | 
The only record I can find of such hybrids is by W. H. Fletcher, 
‘‘ Notes on hybridising Burnet Moths,” in the Ent. Mo. Magq., vol. 29, 
On wo) a 
In 1916 I procured about 200 males and females of the above 
species. By judiciously retarding it was so arranged that the insects 
emerged at the same time. A number of cages were arranged each | 
containing five or six male jilipendulae with a similar number of female | 
lonicerae, and vice versa. ‘These cages were filled with flowers and put 
in the sun. The males of both species made every attempt to pair, 
flying round and round the females while curving in their abdomens, 
but their attempts to copulate were in vain, in spite of the fact that 
the female did not appear to resist. After many failures the males 
would renew their attempts again and again, sometimes almost sue- 
ceeding. The proportion of males to females in the cage was frequently 
varied, and many single pairs were also placed together. Certainly 
