XS'2 i-Uine, 



published which ishow in detail, and Avith diagrams, the biological facts, as 

 has been done here, thus bringing the account of the variety varlci/atd 

 into line with other melanic and other varieties, which have been worked 

 out Ijy the same author, by the late Professor Doncaster, and others, and 

 which will be of so much use to future students. But as several of the 

 minor details of the paper are misleading, comment upon them seems 

 necessary. Taking them in rotation, in the footnote on ]). 12-1- it is 

 stated " it is possible that the variety alhovarleyata is exq^uisita,'" whereas 

 if the two names did represent the same form, the reverse would be the 

 case, alhovarlei/ata having been named and described in the Ent. Mo. 

 Mag. of April 1917, whilst the description of cxqnisita (or vavlcijata- 

 exquisita as it should be called, for it is a varleyata), did not appear 

 imtil a year later (Ent. Record, 1918, p. 189), so that exquisita would 

 become albovco'leyafa. 



Since sending me the paper, however, Mr. Onslow has very 

 generously given me a specimen (along Avitli several other interesting 

 varieties of the species bred in the course of his experiments) of what 

 he evidently regards as the xAYiaiy cxqnisita, and which undoubtedly is 

 the same form as my albovarJeyafa. Mr. Onslow's specimens were 

 obtained by crossing the var. varlei/ata with var. lacticolor (Jhivo- 

 fasciari(t), and it is evidently much easier to breed the form from such 

 crossing than it is from pairings of pure varleyata, from a pairing of 

 Avhich mine was bred. But this specimen of Mr. Onslow's does not 

 agree with Mr. Ila^'nor's original description of var. exquisita, which 

 reads : " Fore-wing with black shoulder-knot at Ijase ; then a broad Avhite 

 median band containing a black discal spot ; then a broad black band 

 extending to outer margin, except that it is bordered outwardly with a 

 band of large white cuneate blotches edged with black towards the 

 fringes. Hind wing wdthout black shoulder-knot, with base therefore 

 white, the rest of tlie loiny to tlie outer maryin similar to tlic fore 

 winyy The italics are mine. Neither in Mr. Onslow's specimen nor 

 my own is there any trace whatever of a black band on the hind wing, 

 which to agree with the description there should be. Mr. Kaynor's 

 description of the upper side, indeed, agrees well with the most pro- 

 nounced form (as to the white cuneate marks) of the male varJeyata as 

 it occurs wild here, though it ap})ears to have considerably more white on 

 the under side. 



Then on p. 127 Mr. Onslow is certainly in error in stating that the 

 males of varhyata are considerably in excess of the females, for when an 



