The Bionomics of South African Insects. 347 



The followiog beetles were refused, usually after 

 tasting : — 



Cantharid^-: : — Mylahris 'palliata , M. Jioloscricca, Elctica 



rufa, Zonitis sp. (all most conspicuous). 

 CocciNELLlD/E : — Uj^ilachiicc dregci (characteristic col- 

 ouring). 

 Clerid.^!: : — " Glcras " sp. (scarlet). 

 Phytophaga : — Diacantlm ronifcra (Lycoid). 

 MelyriD/E : — Pi'ionoccrus dimidiatus (Lycoid). 

 LYCiDiE : — Three characteristically coloured species of 



Lycus. 

 Cetoniid.e : — Clintcria infuscata (orange thorax with 



two black spots, brown elytra, sometinjes black). 

 Heteromera : — Lagria,%^. Probably distasteful, con- 

 spicuous and synaposeniatic with Phytophaga. 

 ScARAB.EiD.E : — Onthophagus gazcUa, smallish Scarabseid 

 with brown elytra and iridescent dark green thorax 

 and head. 

 With the possible exception of the last named, all these 

 species possess distinct aposematic colouring, and nearly 

 all belong to groups which are much mimicked, or fall 

 into important synaposeniatic combinations. 



Mr. Marshall specially points out that the Kestrel, C. 

 naumanni, was young, and it is probable that it had 

 never before had experience of many of these species. — 

 E. B. P.] 



10. Experiments on a tame Ground Horn-bill 

 (Bttcorccj) caffer). (G. A. K. M.) 



Malvern, Natal, May 14, 1897. 

 March 14. Gave a tame ground horn-bill (Bucorax 

 caffer), belonging to Col. J. H. Bowker, 

 the following butterflies : two male A. 

 Serena, one P. lyivus, one male H. misiii- 

 pus, one male A. sercna, all of which he 

 ate readily, taking them in the end of his 

 beak, crushing the thorax and throwing 

 them down his throat. I then gave him 

 L. chrysiifims. He took it, crushed the 

 thorax and dropped it at once. A second 

 specimen given a short time afterwards 

 was treated in the same manner. 

 „ 24. Gave the following butterflies to ground 

 horn-bill : three A. encedon, one A. petrxa, 



