V 

 THE 



ENTOMOLOGIST'S 

 MONTHLY MAGAZINE: 



CONDUCTED BY 



G. C. CHAMPION, F.Z.S. J. E. COLLIN, F.E.S. -r^ 



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

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



J. J. WALKER, M.A., R.N., F.L.S. 

 LORD WALSINGHAM, M.A., LL.D., F.R.S., &c. 



SECOND SERIES-VOL. XXL 



[VOL. XLVL] 



" We are encoui-aged to study more completely every detail and 

 every anomaly in the distribution of living things, in the firm conviction 

 that by so doing we shall obtain a ftdler and clearer insight into the 

 course of Nature, and with increased confidence that the 'mighty 

 maze ' of Being we see everywhere around us is ' not without a plaii. 



A. B. Wallace. 



LONDON: 



GURNEY & JACKSON (Mr. Van Voorst's Successors), 



10, PATERNOSTER ROW. 



1910. 



