I'AI'lLIONID.i;. COLIAS. 11 



female, from which the accompanying figures have been taken. In 

 Lepidoptera Britannica reference is also made to the collection of 

 Mr. Swainson as possessing this species. The past season afforded 

 no less than eight examples — thus illustrating the irregular appear- 

 ance of the Coliades — four of which were captured between ]5righton 

 and Lewes, in Sussex ; and a similar number in the vicinity of 

 York, as I am informed by Mr. Cooper; — these last were found in 

 September — the others in company with Co. Hyale and Edusa. 



Since writing the above, I find, by the Butterfly-Collector's 

 Vade-Mecum, that this species is said to occur, though rarely, in 

 the meadows and road sides near Ipswich, in Suffolk, in the middle 

 of August. 



Sp. 2. Chrysotheme. Plate II. * f. 1. ^. f. 2.? . — Alis siqjrd 



Jidvo-lutcscentibus, Umbo communi nigro (in foem. Jlavo macu- 



lato) ; anticis utrhique puncto medio nigro infra ocelfari, posticis 



siibtus vinscaitibus jmnclo sesquialtero argenteo. (Exp. alar. 



1 une. 8 lin. — 1 unc. 10 lin.) 



Papilio Chrysotheme. Esper. — Co. Chrysotheme. Stepli. Catal. 



Distinguished at first sight from the other indigenous species hy its inferior 

 size, and from Co. Edusa by its paler colour. Its resemblance to the latter 

 insect is almost too close, but its constancy and locality appear to sanction the 

 propriety of considering it as a distinct species : its chief differences from that 

 insect consist in its smaller size, the rotundity of the hinder margin of the 

 anterior wings, its paler colour, the dissimilar form of the marginal fascia, 

 the expanded duskiness at the base of the wings, especially of the posterior, 

 and the black discoidal spot on the under surface of the anterior wings being 

 pale in the middle, as in Co. Europome §. 



f Sp. 1. b. Palacno. AUs_flavis, apice riig-iis ?uargitiequcfiih'ii> : posticis subtiis 



puncto argenteo. Linne. 

 Pa. PaLncno. Linne. — Martijn. 



Wings yellowish, or white, with the exterior margins red ; the superior above 



with a broad black apical margin, and on both surfaces with a black spot ; 



the posterior wings beneath cincrascent, with a lunate silvery spot, and the 



base red. 

 According to Linne, this species feeds upon various kinds of fern (Ptcris). The 



insect occurs in many parts of Europe, from Lapland to Switzerland, in July ; 



its introduction into the British list originated with Martyn, who enumerates 



it in his Aurelian's Vade-Mecum, I imagine by mistake, for Co. Hyale, or 



one of the kindred species. 



§ This last character is unfortunately omitted in some impressions of figiue 'J ; 

 which represents the under side of the female rather larger than nature. 



