The Annual Subscription for 1920 is 15/-. 



[See p. 2 of Wrapper. 



THE 



ESTOMOLOGIS 

 MONTHLY MAGAZINE. 



EDITED BY 



G. C. CHAMPION, F.Z.S. J. E. COLLIN, F.E.S. 



W. W. EOWLEE, D.Sc, M.A., E.L.S. 



R. W. LLOYD, E.E.S. G. T. POKRITT, F.L.S. 



J. J. WALKED, U A., K.N., E.L.tS. 



VOLUME LVI. 



[THIRD SERIES -VOL. VI. 



"J'engage done tous a eviter dans leurs ecriLs toute personnalite, 

 toute allusion depassant les limites de la diaouasioii la plus sincere et la 

 plug courtoise." —Laboidhene. 



LONDON: 



GURNEY & JACKSON (Me. Van Voorst's SuccessoksJ, 



33, PATERNOSTEE liOAV, E.C. 4. 



TAYLOR AND FKANCIS, RED LION COURT, FLEET STREET. 



