e 



NARROW-BORDERED FIVE-SPOT BURNET. 339 



common in most of the southern counties ; still more local ia 

 the eastern counties, and northwards to Lancashire and York- 

 shire. There are records from Armagh and Fermanagh, but 

 Kane appears to doubt the occurrence of the species in Ireland. 

 There is no doubt that the next species has frequently been 

 mistaken for the present one, therefore the actual range of 

 trifolii in the British Isles has probably not been fully 

 ascertained. ^ ^ M^ .^^ /a. A>ti/^^ S/.^'^ } 



Narrow-bordered FiYe-spot Burnet {Zygcetia lonicerce). -^ 



As will be seen from the two specimens represented by 

 Figs. I ^ and 2 $ on Plate 147, this species bears considerable 

 resemblance to ab. orobi of Z. trifolii. The chief differences 

 are in the rather longer fore wings and the more pointed tips 

 of the hind pair ; the borders of the hind wings are often 

 narrower. In a broad w«,y, it may be stated that the general 

 tone of colour in the male of lonicerce is bluer than that of 

 trifolii. The union of any two or more spots is rarely seen in 

 .this species in Britain, but specimens with all the spots joined 

 together have certainly been noted. A yellow form, ab. citrina^ 

 Speyer {— fava, Oberthiir), is known on the continent, and 

 Barrett states that it has occurred in England. In ab. lutesce^is^ 

 Hewett, the hind wings are orange. Ab. eboracecE, Prest, is 

 semi-transparent, steel blue ; the spots and the hind wings are 

 pink, the border of the hind wings brown, and the fringes of all 

 the wings are whitish. 



The caterpillar (Plate 145, Fig. 2) is very similar to that of 

 the last species, but the black marks on the sides are heavier, 

 and the hairs of the body are longer. It feeds on trefoils and 

 clover, and sometimes passes two winters before becoming full 

 grown. The cocoon, which is attached to stems of grass, etc., 

 is generally placed well up above the ground, so that it is 

 readily seen. 



