}' 1887.] VALUE OF COLOUR AND MARKINGS IN INSECTS. 251 



(continued). 



Experimental evidence. 



E. B. Poulton. 



J. Jenner Weir, 



Imagines (continued). 



have often seen it pursued by 

 birds -witli great persistence ; 

 they evidently relish it much, 

 and make great efforts to 

 catch it. 



J. Jenner Weir has 

 seen a Swallow 

 chase this Moth 

 by day, making 

 " several ineffec- 

 tual attempts to 

 seize it.'' The 

 Moth, however, 

 escaped. It was 

 evidently consid- 

 ered a very desir- 

 able capture. 



Eaten by Lizards... 



Evidently much ap- 

 preciated by the 

 birds, but even in 

 the aviary its rapid 

 movements and 

 slipperiness made 

 it very difficult to 

 capture. Eaten 

 by Lizards. 



Eaten directly by L. muralis, 

 and evidently relished. 



Eaten by L. muralis. 



Eaten greedily by 

 Lizards, but appa- 

 rently swallowed 

 with difficulty, 

 probably because 

 of the scales. 



Eaten by Lizards ... 



Other observers. 



Bearing upon Wallace's 

 converse suggestion. 



Support. 



Strong support, as in T. pro- 

 nuha. There is no doubt that 

 it is also relished by birds. 



Strong support in the special 

 character of the defence suited 

 to so many emergencies ; pro- 

 tected at rest ; again, when 

 detected or disturbed, by ap- 

 pearance and mode of flight ; 

 and, again, when captured, 

 by it slipperiness and great 

 strength ; and all this coexist- 

 ing with and following from 

 the fact that it is keenly 

 relished and much pursued. 



Support. 



Support. 



Support. 



Support. 



