



PLATE 24 STRANGE PORTABLE HOUSES. 



Caterpillars of the Psyche-moths construct cases for their protection whilst feeding. 

 The upper examples, which have passed for snail-shells, are constructed wholly of 

 silk ; the lower is of silk covered with vegetable debris. The moth is a male, the 

 female being wingless and never leaving the case in which she fed as a caterpillar. 



