1887.] VALUE OF COLOUR AND MARKINGS IN INSECTS. 



203 



{continued). 



Experiments. 



A. Weismann, 



using 

 Lacerta viridis. 



Eaten by L. viridis, 

 " but not exactly 

 relished." 



Untouched by L. 

 viridis. 



E. B. Poulton, 



using three species 



of Lizards and 



Hyla. 



Evidence insuffici- 

 ent, as the single 

 larva which had 

 disappeared may 

 have escaped. 



How far support given to 

 Wallace's suggestion, 

 that brilliant and conspicu- 

 ous larvDE would be 

 refused by some at least 

 of their enemies. 



Strong support. 



Strong support. 



Generally vmno- 

 ticed ; but tasted 

 by Frogs, and then 

 rejected. Once 

 chewed for some 

 time by a hungry 

 L. muralis, and 

 then rejected. 



Strong support from Jenner 

 Weir's observations. D'Or- 

 ville states that they are eaten 

 by birds in the wild state ; 

 Jenner Weir did not find this ; 

 and there must have been a 

 difference in habit, perhaps 

 due to the species of birds 

 under observation or to ex- 

 treme hunger. 



How far support given to 



Poulton's suggestion, 



that a limit to the success of 



this method of defence 



would result from the 



hunger which the success 



itself tends to produce. 



Support from Weismann's ob- 

 servation, which seems to show 

 that the Lizard ate the larva, 

 though not liking it. 



Strong support from Jenner 

 Weir's observations with 

 Lizards. 



No evidence from Jenner Weir. 

 D'Orville's observations may 

 possibly be a case in point. 



Strong support, from the beha- 

 viour of the Frogs and Spiders. 



Strong support. The most 

 complete evidence afforded by 

 any larva, and the most com- 

 plete unanimity in observa- 

 vations, in which others agree 

 as well as those quoted. 



Strong support. 



The larvse being tasted seems 

 to point towards their being 

 eaten in a condition of exces- 

 sive hunger. The birds seemed 

 to relish them. 



That hungry Lizards shoidd 

 often make determined at- 

 tempts to eat so nauseous a 

 larva is strong evidence for 

 the suggestion ; and it is seen 

 that one Lizard succeeded in 

 swallowing the larva. 



No evidence. 



