.\ 



The Annual Subscription for 1921 is 15/-. 



Third Series, No. 73.] taattt\uv mm rr» o/ 



rNnfiftOl JANUAKY, 1921. [Pbice 2/- ne 



[No. 680.] 



NET. 



THE 



ENTOMOLOGIST'S 

 MOSTIILY MAGAZINE! 



9 i 



EDITED BY 



G. C. CHAMPION, F.Z.S. J. E. COLLIN, F^B?.B( - 1 



W. W. FOWLEE, D.Sc, M.A., E.L.S. "^^.^^/^o^ 

 E. W. LLOYD, E.E.S. G. T. POEEITT, E.L.S. 

 J. J. WALKEE, M.A., E.N., E.L.S. 



VOLUME LVII. 



lTHIRD series -vol. VII.] 



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

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

 plus conrtoise." — Lahoulhene. 



LONDON: 



GUENEY & JACKSON (Me. Van Vookst's Successoes), 



33, PATEENOSTEE EOW, E.C. 4. 



TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 



