nymphalid;e. — hipparchia. G9 



Sussex ; but being unable to examine the originals, I have merely 

 given the Liunean definition. 



I Sp. 19. Arcanius? Alis fcrn/g-incts, suLtits primoribus ocello unico, /mstich 

 tjuiiiis. (Exp. alar. 1 unc. 6 lin.) 



Pa. Arcanius. Linne? — Hi. Arcanius? Steph. Cuial 



Anterior wings above ferruginous, with the hinder margin dusky, edged with 

 whitish ; beneath ferruginous, with a very minute ocellus towards the apex : 

 posterior wings above fuscous, with a whitish edge ; beneath griseous, with a 

 silver line behind, a broad white band in the middle, a black ocellus on the 

 outer margin anterior to the band, four ocelli behind the band, with a silvery 

 pupil, the two anal ocelli largest. 



Caterpillar green with a red mouth ; dark green dorsal line, with a yellowish- 

 white lateral Une, and a yellow one over the legs. 



The locality of this insect is unknown to me ; the only reputed 

 indigenous specimen was in Mr. Plastead's collection. 



Sp. 20. Pamphilus. Alisfuhis, anticis subtus oci-llo ttnico, posticisfascidalbd 



punctisque quuluor obsolelis. (Exp. alar. 1 unc. 2 — 6 lin.) 

 Pa. Pamphilus, Linni: — Lcwin, pi. 23./. 3, 4.— Hi. Pamphilus. Steph. Calid. 



Wings pale tawny above ; the anterior with the margins dusky, with an ocellus 

 towards the tip on each surface, which is sometimes blind, and frequently 

 accompanied by a secondary one, or one or more black spots ; the posterior wings 

 have the margins also rather dusky, and an obsolete ocellus towards the anal 

 angle : beneath, the anterior wings are cinereous at the base and tip, with 

 the ocellus at the tip rather large, black, with a white pupil and whitish edge; 

 the posterior wings are greenish-brown at the base, with an irregxdar abbre- 

 viated pale ash-coloured band in the middle, in which, towards the margin, 

 are several minute indistinct oceUi ; the margin itself is greenish-brown : the 

 body is deep-fulvous or tawny-brown : the antennae tawny, annulated with 

 whitish. 



The male is usually of a deeper hue, and the wings are more distinctly edged 

 with dusky above. 



Var. /3. With the apical ocellus on the anterior wings totally obliterated. 



Var. y. With the posterior wings beneath of an uniform greenish-brown, tho 

 band and ocelU being obliterated. 



The caterpillar is greenish, with white dorsal lines ; it prefers the crested dog's- 

 tail grass. The chrysalis is green. 



An abundant species on every grassy heath and common through- 

 out the kingdom; appearing in June, and again in September. 



Tlie extreme discrepancy of structure and diversity of liabits 

 among the insects referred to this genus induces me to add a 

 few remarlcs upon the importance and utility of the study and 

 investigation of species^ as many naturalists assert, that the sole 



