
AND THEIR TRANSFORMATIONS. 121 
numerous on the hind wings, especially towards the base, and the front margin has a large white blotch; the 
veins in these wings are also pale-coloured. 
A not very uncommon variety, regarded by Fabricius, Lewin, &c. as distinct, is represented in our figures 
7 and 8, in which there is a white oblong blotch in the middle of the fore wings towards the posterior margin, 
visible on both sides, which is frequently duplicated from the confluence of two contiguous spots. The white 
dots are also longer and larger than in the typical individuals. Mr. Stephens possesses a specimen with one 
of the fore wings marked as in the variety, and the other as in the type. 
The caterpillar is green, with pale longitudinal stripes, a black head, and a yellow ring round the neck. It 
feeds on the teazle, the leaves of which it rolls up. 
This is acommon species, occurring in woods and dry pastures in Kent, Surrey, Essex, Hertford, Wilts, 
Durham, Cambridge, Northumberland, and the south of Scotland. It appears at the end of May. Reaumur 
has given the history of this species in the eleventh plate of his first volume. The Rev. W. T. Bree informs us, 
that he once took the “ variety ?” regarded by some writers as distinct under the name of Fritillum, near Yar- 
mouth, in the Isle of Wight ; and that a friend takes it in some abundance in the Forest, near Bewdley, Worces- 
tershire. ‘It seems to be, like the white Colias Edusa, what may be called a permanent variety, or one which 
is constantly occurring.” 
I have followed Boisduval and Zetterstedt in restoring to this species the name of Malve, that name in 
the hand-writing of Linnzus himself being attached to his specimen of this insect in the Linnean Cabinet. 
His words also, “margine guasi dentato, interjacentibus maculis albis,” distinguish it at once from the 
following species. 

SPECIES 2.—PYRGUS OILEUS? 
Plate xxxviii. fig. 13—14. 
These figures represent a North American insect, respecting the history of which, as a doubtful inhabitant of 
this country, it will be necessary to give the following details. 
The late Mr. Haworth, in the 3rd part of the Entomological Transactions (p. 334), gives the following 
statement :— 
“Oileus Papilio (The Georgian Grizzle), Gmel., Syst. Nat. 2370, 269 ? 
“ Ops.—Has been caught in Bedfordshire by the Rev. Dr. Abbott, and is in Leman’s ancient English 
Cabinet, now in the possession of Lee Phillips, Esq., Manchester.” 
From this English name, it is evident that Mr. Haworth considered the specimens as identical with a North 
American species, to which he applied Gmelin’s name Oileus, but with a mark of doubt, which is by no means 
surprising, when it is stated that Gmelin gives Algiers as the locality of that insect, with only the following 
short description of it :—‘ P. alis subdenticulatis fuscis albo maculatis ; supra basin extericrem primorum linea 
alba. Pithoni simillimus.” (Syst. Nat. 4, p. 2370.) 
Mr. Stephens describes the species as having the ‘ wings rounded ; anterior varied with black and white ; 
posterior beneath cinereous with waved black streaks; antenne black ; the club cinereous beneath :” and 
suggests that the specimens in question (which he had not seen) may be rather identical with the P. Fritillum o 
Hiibner. Mr. Curtis however, states, that they all agree with the North American species. 
