268 



upon the costa and a black streak at the base in the centre ol the wing, 

 and a white waved striga near the posterior margin. 



Var. 11. ocellina. Anterior wings dusky or blackish, with a short 

 ashy streak upon the costa, with two black transverse strigae, the first 

 before the anterior stigma, the second behind the posterior, near the 

 hinder margin is a pale waved striga, anterior stigma ocellated. 



Var. 12. Anterior wings blackish, with a black streak at the base 

 in the centre of the wing, extending beyond the anterior stigma; pos- 

 terior wings ashy, slightly margined with fuscous. I took this variety 

 near Brockenhurst, Hants, in September. This variety expands only 

 one inch ; from its small size and black appearance I had considered 

 it distinct, and had named it some time since pusilla, but having lately 

 examined many specimens taken at Darenth Wood last summer, most 

 of which were allied to ocellina, two or three were small, having the 

 characters of ocellina, with the black streak at the base, connecting 

 my pusilla with that supposed species. 



It will be useless for me to describe more of these varieties, for it is 

 difficult to find two specimens perfectly similar ; in some the teliform 

 stigma is wanting, in others it is large ; some have no transverse stri- 

 gae, others have from one to four; some are destitute of the white 

 streak ujDon the costa, and some have their wings greyish, others dark 

 fuscous ; some are dark at the base, others upon the posterior margin. 



These varieties are very pei-plexing, and I believe there are not two 

 collections in London in which they are named alike, at least I have 

 not seen two, except that of Mr. Chant. The conspicuous varieties 

 are considered by some as distinct, thus multiplying species, when in 

 fact they all constitute but one variable species. 



There are two or three other species in this genus that require in- 

 vestigation ; the want of conclusive proofs compels me to leave them 

 for the present. I trust that some of your practical correspondents 

 will be induced to take up this subject. W. Bentley. 



3, Critcbell Place, New North Road, 

 January 15, 1842. 



Art. LXVI. — List of Lepidoptera captured near York. 

 By Robert Cook, Esq. 



30, Collier Gate, Yoxk, 



November 25, 1841. 

 Dear Sir, 



Havin£f read with pleasure the various local lists of captures which 

 have appeared in ' The Entomologist,' I take the liberty of sending you a list of such 



