L YC.EXID.E. 57 



parallel witli, the liind margin. Not usually variable, but in 

 the collection of the late Mr. H. Doubleday in the Bethnal 

 Green Museum is a female having a deep black vsredge-shaped 

 blotch lying before the first discal spot and pointing towards 

 the base of the wings. Mr. S. Webb has a male in which 

 the black spots of the under side are visible on the upper. 

 July and August. 



Larva, head small, retractile ; dorsal surface of body convex, 

 posterior margin of each segment overlajiping the anterior 

 margin of the next ; legs and pro-legs set closely together, 

 and not visible from above. Green, dorsal line slightly 

 darker. Full fed in June ; probably hybernates when young. 

 (Newman.) 



Pupa obese, blunt at each end, attached by the tail and a 

 silken gii'th. 



This description was made by Mr. Newman from larv£e 

 obtained from the fens, but fed up on great water dock 

 {Rumcx hydrolapathuiii) in the garden of Mr. H. Doubleday 

 at Epping, more than forty years ago. 



In the Eidomolorjid for 1883 is a curious history by H. J. 

 Harding, the well-known insect dealer, — then upwards of 

 eighty years of age — of the discovery of this species in 

 England. He says : " About forty years ago, Mr. Benjamin 

 Standish (the grandfather) heard that dispar had been seen 

 in the feus. He got a painting of the butterfly, coloured by his 

 father, and went down to the feus. He showed it to a man who 

 worked in the feus, who said that he had seen some fjiat day. 

 Standish offered five shillings to be taken to the spot, but the 

 jiian refused, saying that he intended to take a lot up to 

 London. Standish, however, found where the man worked, 

 and took a tine lot. It soon got known among the fen folk 

 that they were worth two shillings each in London, and two 

 men came from Cambridge and secured a large number, 

 which they took to London in boxes, and sold at sixpence 

 each. I went down three years after, and got some of 



