The Annual Subscription for 1931 is 15/- 



Third Series No. 79.] july, 1921. [Pmc: 2/- ki.t. 



[No. 686.] 



THE 



EHTOMOLOGISrS 

 MOSTIILY MAGAZINE. 



EDITET) BY 



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



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



E. AV. LLOYD, F.E.S. G. T. POEEriT, F.L.S. 



J. J. WALKEE, MA., E.N., F.L.S 



VOLUME lv;l 



1921 1 



[THIRD SERIES- VO X..' >VII.] 



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

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

 plus oonrtoise."— LabouZbene. 



LONDON: 



GUENEY & JACKSON (Me. Van Voobst's Successors), 



33, PATEENOSTEE EOW, E.C. 4. 



TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 



