100 A (ATAT.OOUE OF THE LEPIPOPTERA OF 



Derwent, the iijiper branches of tlie Tyne and the Wansbeck, 

 and to tlie romantic denes of the Magncsian Limestone, with 

 their great variety of food plants, that most of the localities 

 enumerated below are to be referred. To such places the collec- 

 tor naturally resorts as the most likely to afford him the objects 

 of his search, especially in cases like my OAvn, where other and 

 more urgent duties restrict the opportunities for collecting. 

 There is no doubt that a more extended search in the wilder 

 portions of both counties would materially increase the numbers 

 of our fauna, and I indulge the hope that I shall be enabled, 

 before my labours close, with the assistance of a few fellows- 

 labourers, who have recently arisen in other 2)arts of the district, 

 and to whose kindness I OAve several of the distant habitats 

 given in my list, to include therein many species hitherto unde- 

 tected within our limits. My own collection, I may remark, 

 was chiefly formed between the years 1826 and 1834; after 

 which I attended little to the subject until 1854, when I re- 

 sumed it as far as my leisure permitted, in order to enable me to 

 prepare this Catalogue, which I had been induced to undertake, 

 for our Transactions. During the long interval, I find little has 

 been done towards investigating this department of Entomology 

 amongst us. This is much to be regretted, as the earlier por- 

 tion of the Catalogue will, I fear, be found deficient in several 

 conspicuous species which, I have no reasonable doubt, exist 

 within our boundaries, though, having hitherto escaped notice, 

 they must be consigned to an appendix. 



By Avay of historical introduction, I may premise that the 

 earliest notice of any of these insects in our locality appears in 

 Wallis's well known " Natural History and Antiquities of North- 

 umberland," published in 1769, where he enumerates 9 species 

 of Butterflies and 10 of Moths. It is somewhat singular that 

 for one of the former, " The Tortoise-shell Butterjly^^ he is as yet 

 the only authority for its admission into our fauna. The next 

 local list appeared in the Appendix to Brewster's " Parochial 

 History and Antiquities of Stockton-upon-Tees," published in 

 1827, and is from the accomplished pen of our late President, 

 John Hogg, Esq. In it, 9 Butterflies and 16 other LepidojDtera 



