hetioeen lepidopterous larvie and their stirro^tndings. 319 



Colour of mature larva;. 



5 green, 1 intermediate. 



1 dark smoky-black. 

 1 greenish-brown (inter- 

 mediate). 



1 greyish smoky-black. 



9 black (1 dark brownish, 

 3 with dull greyish patches). 

 1 grey. 



4 black. 



5 black (overspread with 

 grey). 



1 brownish-black. 



6 dark (with grey 

 patches). 



3 intermediate. 



3 dark (respectively 

 overspread with grey, 

 greenish on sides, and 

 with pale yellowish spots). 



1 green (with brown 

 dorsal line and lateral 

 patches). 



2 black. 



2 dark overspread with 

 grey. 



1 bright green. 



2 green, sprinkled with 

 grey, 1 greenish inter- 

 mediate. 



1 whitish, 2 blackish 

 with grey markings. 



1 distinct but dull green 

 with brown broad dorsal 

 line and slight lateral traces. 



A glance at the diagram and results proves conclusively 

 that there is no restriction of susceptibility to the younger 

 stages of this species. Experiment B-^ shows the strong 

 influence of a black environment applied only to the two 

 latest stages, while A^ shows considerable effects traceable 

 to black which was present in the 2nd stage only. When 



TRANS. ENT. SOC. LOND. 1903. — PART III. (OCT.) 22 



