Explanation of Fkiies. 567 



Fig. 59. Phanomcris dnhius $, Nov. 1900. 



60. Pimpla tnberata ^, April 1900, 



61. „ „ 9, Nov. 1900. 



62. Callilcstcs stlgmafellns, Nov, 1900, 



Explanation of Plate XIX. 



MiJLLERiAN Mimicry in groups of South African Coleop- 



TERA AND HeMIPTERA, ETC, 



Figs. 30 to 38 twice the natural size ; Figs, 53 to 59 one and a half 

 times natural size ; all other figures of the natural size. 



All the specimens, except that shown in Fig. 16, Avere captured by 

 Guy A, K, Marshall, and all, unless otherwise stated, are from 

 Salisbury, Mashonaland, 5000 feet. 



Figs, 1 to 16 represent a powerful group of CanthariJec and tlie 

 insects convergent towards them, and having conspicuous cream, 

 orange or red bands on a black ground. The group gradually merges 

 into that shown in Figs. 17 to 29, in which the ground-colour is 

 orange or yellow with black bands, sometimes broken up into spots. 



Fig. 1. Mylahris dicinda, Dec, 1898, 



2. „ tettensis, Nov. 1898 to Jan. 1899. 



3. „ „ Dec, 1898, 



4. „ tricolor, Nov, 1898 to Jan. 1899. 



5. „ oculata „ „ „ 



6. „ „ Dec, 1898, 



7. Actenodia chrysomelina, Dec. 1898. 



8. „ „ Nov, 1898, 



9. Mylahris holosericea, Dec. 1898. 



10. Decatoma lunata, Nov. 1898 to Jqn, 1899. 



11. Actenodia chrysomelina, lL)ec. 1900. 



• 12. Decatoma lunata, var., Nov. 1898 to Jan. 1899. 



13. Afylahris oculata „ „ „ „ 



14. Cymatura bifasciata, Dec, 1898, 



15. Ceroplesis caffer, Dec, 1898, 



16. Anuhis mellyi, Colenso, Natal, 



17. Oncopeltus famelicus, Sept. 1900. 



18. Melitonoma n. sp., Dec. 1898. 



19. „ truncatifrons, Oct. 1901. 



20. Clythra vmhlbercji, Dec. 1898. 



21. Melitonoma litigiosa, Jan. 1901, 



