TO THE 



REV. LEONARD JENYNS, M.A., F.L.S., F.Z.S., F.G.S., 



Member of the Entomological Society of London, and of the Cambridge Philosophical 

 Society ; Honorary Member of the Royal Zoological Society of Ireland, and of the 

 Natural History Society of Boston, United States, &c. 



OF SWAFFHAM BULBECK, CAMBRIDGESHIRE; 



WILLIAM THOMPSON, ESQ., 



VICE-PRESIDENT OF THE NATURAL HISTORY SOCIETY OF BELFAST, ETC., ETC.; 



AND 



HERMANN BURMEISTER, M.D., PH.D., 



Professor of Zoology in the University of Halle, and Director of the Museum of Zoology ; 

 Member of the Imperial Academy of Naturalists, of the Physical and Medical Society 

 of Erlangen, of the Natural History Society of Altenburg; Honorary Member of the 

 Entomological Society of London, and of the Natural History Society of Berlin, &c. 



THRBE ARDENT ADMIRERS OP NATURE, 



Whose unceasing labours to elucidate the boundless variety of objects 

 which own the Creator's care and proclaim his power, is only equal to their 

 disinterested exertions and zealous endeavours to forward illustrations for 

 the present Monograph, and without whose assistance it must have been 

 materially abridged, 



This volume is inscribed, 



With gratitude and esteem, by 



THE AUTHOR. 



