COLOURS AND FORMS OF INSECTS. 



143 



Transformations of the brimstone motli (Rwnia Cratce^ata). 

 o, the caterpillar in its resting position. 6, the moth, c, the eggs, 

 d, the young caterpillar. 



We found during last summer, on an elder, at Lee, 

 several specimens of a similar walking-branch cater- 

 pillar, that of the swallow-tail moth ( Ourapteryx 

 Sambucaria, Leach), not so common as the preced- 

 ing, but equally remarkable; for the ringed bulgings 

 on the body are precisely like those of an elder branch, 

 while the longitudinal stripes are like the cracks. in 

 the bark.* It is likewise worthy of remark that these 

 caterpillars, when not feeding, rest upon their pro- 

 legs, with their body stretched out at various angles 

 from the branch, their only support being a thread of 



VOL. VI. 



* J. R 



13 



