Vlll PREFACE. 



of the unfortunate expedition under Franklin, which his brother, 

 Professor Goodsir, of the University of Edinburgh, kindly in- 

 trusted to me for examination. Mr John T. Syme has also 

 examined the Orkneys and the Island of Mull, the latter of 

 which places has likewise been gone over by Mr Hislop and 

 myself. 



My information as to Sutherland and Ross-shire has been 

 principally derived from Mr James Wilson of Woodville, one of 

 the authors of the Entomologia Edinensis, and from Mr Hors- 

 burgh, Tongue House, and Mr Andrew Young, Bonar Bridge, 

 Sutherland, who have been kind enough to cause collections to 

 be made for me. 



To Mr Weaver of Birmingham, and Dr Nelson of Lytham, I 

 owe the knowledge of some interesting novelties taken in their 

 researches in the Black forest, Rannoch. 



Forfarshire has been most investigated by Dr Greville and 

 myself; and Dumfriesshire has been made entirely his own by 

 the Rev. Mr Little, to whom it will be seen we owe a very large 

 proportion of the rarer Scottish captures. 



In the Catalogue I have appended the name of the captors of 

 the insect to those species which have only been taken by one 

 or two persons. I have not, in every instance, had the oppor- 

 tunity of making sure, by personal inspection, that species com- 

 municated to me are authentic, but in most instances I have 

 done so; and where I have not, the collector whose name is 

 appended stands responsible for its correctness. 



EDINBURGH, 7 NELSON STREET, 

 April 1853. 



