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[See p. 2 of Wrajjper. 



Third Series. No. 72.1 T^^7l/1T7.^^Tr)T^T^ ,«o,. tt^ 



TNn fiTQ 1 DECEMBER, 1920 [Price 2/- net. 



[No. 679.] 



THE 



ENTOMOLOGIST'S 

 MONTHLY MAGAZINE. 



EDITED BY 



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



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



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



J. J. WALKER, MA., R.N., F.L.S. 



VOLUME LVI. DEci^'^ 



THIRD SERIES- VOL. VI.] 



'-^^nian [)^^ 



••J'engage done tous a eviter daus leurs ecrits toute personualite, 

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

 plus courtoise." — Lahoulhene. 



LONDON : 



GURNEY & JACKSON (Me. Van Vogbst's Successors), 



33, PATERNOSTER ROW, E.C. 4. 





TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 



