( vii ) 



CONTENTS. 



PAGE 



Explanation of the Plates . . . . . . , . . . . . viii 



Errata . . . . . . . . . . . . . . . . . . viii 



List of Members . . . . . . . . . . . . . . ix 



MEMOIRS. 



I. Stylojndarnm, ordinem Strep sipter or nm Kirhii constituen- 

 tium, mihi tamen potius Coleopterorum Familiaj, RJiipi- 

 2}horidis 3Ielo'idisque propinqua;, Monographia. Auctore 



S. S. Saunders 1 



II. On certain species of Pericopuh's in the Collection of Mr. 

 W. Wilson Saunders: with a List of the described species 

 pertaining to that Group. By Arthur G. Butler, 



r.L.s., r.z.s., &c id 



III. Descriptions of some species of Cassldldcc new to science. 



By J. S. Baly, F.L.S 59 



IV. Descriptions of new species of Lucanoid Coleoptera ; with 



remarks on the genus Cantharolethrus, and supplemen- 

 tary Mst. By Major F. J. S. PARRY, F.L.S. (including 

 descriptions by M. Snellen Van Vollenhoven, and Prof. 



Westwood, M.A., F.L.S.) 73 



V. Descriptions of some new Papilionldce. By J. O. WEST- 

 WOOD, M.A., F.L.S., Pres. Ent. Soc 85 



VI. Notes on the Diurnal Lepidoptera described by Jablonsky 

 and Herbst, in their " Natursystem aller bekannten Insek- 



ten." By W. F. KiRBY Ill 



VII. On the genus Acentropns. By J. W. Dunning, M.A., 



F.L.S., &c 121 



VIII. On the external sexual apparatus of the males of the genus 

 Acentrojjus. By Robert M'Lachlan, F.L.S., Sec. Ent. 



Soc 157 



IX. On the Longlcorri Coleoptera of Chontales, Nicaragua. By 



H. W. Bates, F.L.S '. 1G3 



X. Descriptions of Twenty new species of Bnprestidce, By 



Edwabd Saunders, F.L.S., V.-P. Ent. Soc 239 



