424 VARIETIES. 



in breadth. Those kept during the winter, at the temperature 

 of 60" Fahrenheit, produced perfect insects on the 20th April, 

 those in the open air about three weeks later. The moth is 

 the Red-headed Pigmy, Tinea riificapitella of Haworth.^ The 

 upper wings are gold-coloured, with the apex purple ; the 

 head ferruginous : the expansion of the wings 2^ lines. 

 I am. Sir, yours, &c. 



Evan Webster Lewis. 



20, Queen Street, King's Road, Chelsea, 

 SOfhMay, 1833. 



45. Defence of Mr. WestwoocVs Conduct, (Vid. ante, 

 p. 260.) — Sir, I am sorry my last communication should have 

 been so negligently expressed as to have drawn from you 

 observations creditable to your liberal feeling, but I apprehend 

 less than fair towards a fellow-labourer. I did not contemplate 

 the covert allusion you have supposed, having no reason to attri- 

 bute to Mr. Westwood a knowledge of the intimated identity 

 of the doubly-named groups ; indeed, I consider that gentle- 

 man's zeal in the cultivation of science a guarantee against his 

 knowingly encumbering our already teeming nomenclature 

 with discarded names. Individually I was interested in few 

 of the cases alluded to, and entertained no idea of property in 

 mere indications. It is unfortunate that in the present state of 

 system the introduction of such is unavoidable in a general 

 classified catalogue, as those of Curtis and Stephens : in these 

 instances, however, the resulting inconvenience may be obvi- 

 ated (to the entomologists of the metropolis) by a direct refer- 

 ence to collections which the liberality of their possessors has 

 made almost public. In other cases the publication of detached 

 indications is a fertile source of confusion ; it so often happens 

 they are suffered by their sponsors to remain barely such, 

 whether from indolence, alien occupation, or the want of an 

 appropriate channel for descriptive essays. This last difficulty 

 being now happily removed by the liberal management of 

 your magazine {esto <perpetua /), it is to be hoped that all such 

 pledges will in future be speedily redeemed. 



Yours, &c. 



A. H. Haliday. 



Dnhl'in, May 6th. 



" Lep. Brit. p. 586. 



