XXVI INTRODUCTION. 



The author cannot conclude this Introduction without returning his acknow- 

 ledgments to those gentlemen, to whom it will appear from a perusal of the fol- 

 lowing pages he is under great obligations for very considerable additions to his 

 catalogue of the insects of the British Provinces in North America, namely to Dr. 

 Bigsby, of Newark, and Capt. Sheppard, of her Majesty's Royal Regiment of 

 Artillery, for those of Canada ; and to Dr. Mac Culloch, and Capt. Hall, late of 

 her Majesty's 81st Regiment, for those of Nova Scotia. From Dr. Thaddeus 

 Harris, and Mr. Drake, he has received several specimens from the Province of 

 Massachusets, which are likewise found in the British Provinces. 



