CONTENTS. 



PAGE 



Officers of the Society • . . . . iii 



Price of the Transactions iv 



Explanation of the Plates ix 



Addenda et Corrigenda xi 



Additions to the Library from 1st January, 1850, to 31st December, 



1851 xiii 



Additions to the Collections from 1st January, 1850, to 31st December, 



1851 xvi 



By-Laws of the Society, altered and adopted at a Special General 



Meeting held on the 1st September, 1851 1 



List of Members, December 31st, 1850 i 



Journal of Proceedings from January, 1850, to January, 1852 ... i 



Index clxix 



MEMOIRS. 



I. Description of a new Hemipterous Insect from Boutan ( Urochela 



^-punctata). By W. S. Dallas, Esq., F.L.S 1 



II. Notice of some Hemiptera from Boutan. By W. S. Dallas, 



Esq., F.L.S 4 



III. On two Subgenera of Ichneumons. By Thomas Desvignes, Esq. 12 



IV. On the British Species of the Genus Gelechia of Zeller — (con- 



tinued). By J. W. Douglas, Esq 14 



V. On Elachista arutellu, Zeller, and several Species with which it 



is likely to be confounded. By H. T. Stainton, Esq. ... 21 



VI. On the Genus Micropteryx of Zeller. By H. T. Stainton, Esq. 26 

 VII. Descriptions of two new Species of Exotic Hymenoptera. By 



F. Smith, Esq 41 



