200 THE BUTTERFLY VIVARIUM. 



wings half closed, in which state it forms a most 

 beautiful object. 



As early as the first signs of herbage begin to 

 clothe the banks in spring, the Caterpillar of another 

 of the genus may be found, that of Arctia Villica, 

 the " Cream-spot Tiger," a Moth which, though less 

 in size, is perhaps still more attractive in colour. 

 The Caterpillar, however, is far less beautiful, being 

 of a dull black, and only partially clothed with the 

 fine fur that distinguishes its relative. 



The Tussocks, or Tasselled Caterpillars, must not 

 be neglected, as they form very beautiful objects for 

 the Vivarium, especially those of the Vapourer- 

 moth, of the Dagger-moths, and of Dasychira JPu- 

 dibunda, the Pale Tussock, the last being a most 

 beautiful straw-coloured Caterpillar, with tussocks 

 of pale orange, and showing at the opened segments 

 interstices of the intensest black. 



The most interesting among the transformations 

 of the " Tussocks " are perhaps those of the " Va- 

 pourer-moths," Orgy a Antiqua and Orgy a Gonos- 

 tigma. In both these species the female is wingless, 

 and so unlike a Moth in general appearance that a 

 tyro in entomology would not dream of placing it 

 in the order Lepidoptera, as it has neither scales, nor 

 wings to bear them. The males of these Moths are 



