NYMPHAIJD.E. AUCIYNNIS. 37 



nnmerosis argeiUeis, strififiqne oalhnnn septemfernu/inconim pujnllu itrym- 

 te/i. (Exp. alar. 1 unc. 10 lin. — 2 unc. 1 lin.) 

 Pa. Lathonia. Linni: — Don, iii, ;;/. 73.— Ar. Lathonia, AVe////. Cutnl. 



AVings above tawny-orange, distinctly spotted with black, with the base pow- 

 dered with greenish : anterior beneath spotted as above, but paler, with the 

 tip brown and bearing seven or eight more or less distinct silvery spots : the 

 posterior wings are yellowish, varied with brown beneath, with above twenty- 

 two silver spots of a very unequal" size and dissimilar form, of which about 

 fifteen are placed between the base and the middle of the wings, and seven 

 on the posterior margin : between these groups are seven ocellated spots of a 

 dusky-brown, with silver pupils : cilia on all the wings above whitisli-fulvous, 

 interrupted with black ; beneath fulvescent, with a few dusky spots. 



Caterpillar gray-brown, with a white line down the back, and spotted with 

 black, with two brownish-yellow lateral lines : the spines and legs pale yel- 

 low. Chrysalis anteriorly dull-brown, posteriorly greenish, sprinkled with 

 gold and silver spots : a white streak at the end of the wing-cases : — the per- 

 fect insect appears in about fifteen days. The caterpillar feeds on the Viola 

 tricolor, Hedysarum onobrychis, and Anchusa officinalis. 



The effulgent metallic brilliancy of the silver spots which adorn 

 the posterior wings of this beautiful insect beneath, renders it pre- 

 eminently conspicuous in our collections; and its peculiar rarity 

 contributes to the value of its acquisition. Previously to the year 

 1818, few cabinets possessed even a single specimen; and from 

 the very few known instances of its capture (six only, according 

 to Mr. Haworth), there is reason to believe that some of the .speci- 

 mens at that time placed in collections were foreign ; but in the 



X Sp. 2. Niobe. Alls fulvis, nigro-maenlatis, posticis snhtiis maculis pallidis, 

 sen argentcis, strigftque ocellorum fcrniginconun pupillu nrgente/i. (Exp. 

 alar. 1 unc. 8 lin.) 



Pa. Niobe. Linnc.— Stewart.— Ar.'Niohe. Stcph.i'utal. 



Wings fulvous, spotted with black, with the base above dusky : beneath, the 

 anterior wings are similar, but the spots are smaller, and the base clear; the 

 posterior wings are bufF-colour, variegated with ferruginous, with silvery or 

 yellow spots, with a series of ferruginous ocelli, with silvery pupils. 



Caterpillar brownish, with orange-brown head and legs, a white dorsal stripe 

 powdered with black, a black lateral stripe, and a whitish triangular spot on 

 the side : spines whitish and reddish alternately. 



Stewart gives this as a British species, but without any authority : I may, how- 

 ever, add, that among the insects purchased by Mr. Dale, from the professed 

 indigenous collection of the late Dr. Abbot, of Bedford, was a single speci- 

 men of this species, which was considered by the Doctor <is a variety of Ar. 

 Adippe; but there was no history attached lo the specunen. 



