( 287 ) 



XVII. Five Years Ohscrvaiion» and Experiments (1896— 

 1!)01) on the Bionomics of South African Insects, 

 chiefly directed to the Investigation of Mimicry and 

 Warning Colours, by GuY A. K. Marshall, F.Z.S. 

 With a Discussion of the Results ancl Other Subjects 

 suggested by them, by Edward B. Poulton, M.A., 

 D.Sc, F.R.S., Hope Professor of "Zoology in the 

 University of Oxford, Fellow of Jesus College, 

 Oxford ; and an Appendix containing Descriptions 

 of New Species by Ernest E. Austen, William 

 L. Distant, Colonel Charles T". 'Bingham, F.Z.S., 

 Guy a. K. Marshall, and Jules' Bourgeois. 



[Read March 5, 1902.] 



Plates IX. to XXIII. 



CONTENTS. 



rAOE 



1. Introduction. By Guy A. K. Marshall and E. B. 



POULTON ^^^ 



2. Experiments on Mantid/e in Natal and Ehouesia. 



(G. A. K. M.) 297 



3. Conclusions from Experiments on Mantiu^. (E. B. P.) 315 

 4 Experiments on Spiders in the Karkloof. (G. A. 



K.M.) 319 



5. Results of Experiments on Spiders and the earlier 

 Experiments on Mantid/e : One Probable Meaning 

 OP THE Tenacity of Life in Distasteful Insects. 



(G. A. K. M.) 322 



G. The Attacks of Predaceous Insecis other than 

 Mantid.e UPON CONSPICUOUS specially-defended 

 Lepidoptera, etc. (E. B. p.) 328 



A. Predaceous Hymenoptera and NeurcqAeni 329 



B. Predaceous Coleoptera 330 



C. Preddceovs Diptera 331 



7. Lepidoptera with Warning Colours specially liable 



to the attacks of Parasitic Insects. (G. A. K. M.) 337 



8. Experiments on Lizards and Frogs. (G. A. K. M.) . 338 



9. Experiments on Captive Kestrels {Cerchneis rupi- 



coloides and G. naumanni). (G. A. K. M.) 340 



TRANS. ENT. SOC. LOND. 1902.— PART HI. (NOV.) 



