103 



No. 2 pale for a male. 



No. 3 has absolutely no markings on the hindwings, is exception- 

 ally dark in colour and the transverse line on the forewings is 

 unusually small and faint. 



No. 4 g and No. 5 $ are somewhat scaleless forms without 

 markings on hindwings. 



No. 6 ? is quite an unusual colour, the white spot is small, the 

 transverse line very slight in forewing and absent in hindwing. 



No. 7 ? is the most uncommon variety in my collection. The 

 white spot is exceedingly close to the transverse band. The con- 

 trast between the rich red of the ground colour and the pale yellow 

 margin is very striking. 



No. 8 $ is of dull brown colour, with obscure transverse lines 

 and very pointed forewings. 



No. 9 ? is a pale well-marked specimen, the left forewing being 

 very rounded in shape. 



No. 10 2 is the largest specimen in my collection. 



The entire drawer fails to show fully the variation that occurs in 

 this species. Even my own comparatively weak collection contains 

 very many specimens that are equally worth a place in the drawer. 



"Before leaving the consideration of this species, I should like to 

 say a few words upon the suggested division into L. querciis and 

 var. calliniiB. Many of our entomologists desired to separate them 

 as species. In any case the division is of long standing. Personally 

 I experience difficulty with it. Although I fear the subject is 

 rather thread-bare, I hope I may be allowed to take up a few 

 minutes of your time. 



" L. querciis is the " Oak Eggar," var. calliauB the " Northern 

 Eggar." I do not know the northern limit of L. querciis, but it 

 extends to Yorkshire and Lanes. Var. calluniB is the usual form in 

 Scotland, Ireland and upon the moors of North, Central and South 

 West England. L. querciis under all usual conditions completes 

 its life history in one year, hybernating as larvffi and emerging in 

 late July or August. Var. calluna, in the North, takes two years 

 to complete its life history and emerges in June, but in the South 

 it frequently appears to take the querciis habit. On the New Forest 

 heaths and the moors of the Lynmouth district of Devonshire, it 

 has been observed sometimes to take one year and sometimes two 

 years to come to maturity. In the Isles of Scilly it appears to 

 mature in one year, invariably. 



" As regards the appearance of the imago, the main distinction is, 

 perhaps, that the transverse bands in L. querciis are directed towards 



