size : the larvos also have only 6 abdominal feet, as shown in 

 the plate, the figure above exhibiting the pupa, and I am not 

 aware that any one has described the maxillary palpi, which 

 are very distinct. 



The following observations upon the species figured were 

 communicated to me by the late Mr. E. W. Lewis of Chelsea, 

 whose promising talents and devotion to Entomology render 

 his premature death a loss to science. 



*' This Moth is double brooded, the first appearing in May 

 from the larvae of the preceding autumn, the second in July. 

 The eggs ai*e laid in rows consisting of from three to a dozen, 

 and are placed along the nervures on the underside of the 

 Lilac and Privet. In five or six days the eggs are hatched, 

 and the larvse eat into the leaf, mining to the upper surface, 

 where they eat the parenchyma, leaving the epidermis un- 

 touched : about a fortnight after, they leave their mines, and 

 commence rollinjj the leaves: the roll is fastened on the out- 

 side with a few threads, and the ends are drawn close. Here 

 they remain until full grown, eating only half the substance of 

 the leaf, when they drop from the leaves and retire under 

 ground, where they spin a strong case, and in a few days 

 change into pupae. 



" It is principally on trees in shaded situations, and on the 

 ground-shoots and under-branches of others that the mother 

 moth lays her eggs. This insect is very abundant in our 

 neighbourhood ; one small tree in our garden they attacked 

 in such numbers that long before they were full grown there 

 was not a green spot remaining." — E. W. Lewis. 



Mr. R. Lewis having supplied me with the larvae whilst 

 feeding on the Lilac, I was able to make the following obser- 

 vations : at first they mine between the plates of the leaves, 

 forming as it were brown blisters upon them; they afterwards 

 roll up the end of the leaf on the underside, fastening it with 

 fine silken threads, as represented in the plate : on opening 

 this roll I have found 6 or 7 larvae of different sizes, the young 

 ones were dirty flesh-coloured, those nearly matured pale green 

 and darker in the middle ; they consume, at this period of their 

 lives, the inferior cuticle of the leaf, and the space is filled with 

 minute black pellets of dung. 



Like most other Lepidoptera, these have their parasite. The 

 Pimjila stercorator F. and its larvae feed upon the caterpillars 

 of G. anastomosis, as lately related in a very amusing manner 

 bv Mr. Lewis in Loudon's Ma<j. of Nat. Hist. 



A list of the genus Gracillaria will be found in the Guide; 

 I have only to observe that the T. Upiipccjpenella Hiib. is the 

 type of Treitschke's genus Ornix, that T. Mayrella is the fe- 

 male of his T. signipenella, and that my No. 18. G. leticapcnclla 

 and 1 4. rujlpennella belong to other genera. 



For the beautiful Plant figured, Glaucium violacami (Violet 

 horned Poppy), I am indebted to the llev. Dr. Jermyn of 

 Swaffham Prior, Cambridgeshire. 



