CONTENTS. 



PAGK. 

 Observations on some of the causes determining the survival and extinction of 



Insects, with special reference to the Coleoptera. — Geo. B. Walsh, B.Sc. 225 



Studies in Helophorini (7) (with figure).— D. Sharp, M.A., F.R.S 23a 



Phyllotreta diademata Foudras, in England. — Id 238 



Creophilus maxillosus, v. ciliaris, at Cbiswick. — E, A. TFaterhoute 239 



Ochthebius povreri Rye, &c., at ETxmouth. — G. C. Champion, F.Z.S. 239 



A list of the Coleoptera of Marocco. — Id 240 



Coleoptera in the Plymouth district. — James H. Keys, F.E.S 240 



On Pancalia leuwenhoekella.— £", Meyrick, B.A., F.R.S 241 



A rare saw-fly in Epping Forest. — Harold E. Box 242^ 



Abstbacts of Recent Literatuke. — Sugh Scott, M.A., F.L.S 242 



Societies. — South London Entomological Society...-. 245 



Entomological Society of London 247 



NOW BEADY. 



rpHE ICHNEUMONS OF BRITAIN: Vol. V and last. By 



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