



Plate IXa. Left, Androctoniis australis, one of the most deadly species 



in the world. Right, ignoring a hard desert beetle {Akis spinosa). {Photos: 



J. L. Cloudsley-Thompson.) 



Plate IX^. Left, black scorpion {Androctoniis ceneas). {Photo: J. L. 

 Cloudsley-Thompson.) Right, pectine of scorpion much enlarged. {Photo: 



E. A. Robins.) 



