422 TRANSFORMATIONS OF INSECTS. 



in their movements. They evidently were greatly affected by it, 

 and seemed to shun it instinctively. This was the first marked 

 exhibition of instinct, and then locomotion was performed with 

 the same instinctive care. The end or anal segment was expanded 

 like the same part in a caterpillar ; and, being first attached, like 

 a true pro-leg, and its steps, as it were, measured, its body was 

 carried forward by an effort that extended, as in insects, from 

 segment to segment. 



At twenty-four hours after escaping from the membrane the 

 young animals were lying together in a heap, but when disturbed 

 seemed to have acquired more power of moving ; they remained 

 quiet except when roused, and had not yet taken food. The 

 only marked difference in their appearance, excepting that they 

 had still further increased in size, was in the nipple-shaped 

 protuberances on the sixth and seventh segments, the rudiments 

 of future legs. These were now more distinct and more uniform. 

 Ten hours later in the day they assumed still more the appearance 

 of nipples projecting from the under surface of the segments. 

 When examined in specimens that had been placed in spirits of 

 wine it became evident that these projections were occasioned by 

 the development under the deciduous (cast skin) integument of 

 four new but exceedingly minute legs, complete in all their parts, 

 each covered by its proper skin. The claws to the legs were 

 also more strongly marked. The new segments were more grown. 



Mr. Newport found that the Myriapods had assumed a darker 

 colour on the nineteenth day, but they had not as yet taken 

 food. The double pair of legs to the sixth and seventh segments 

 were distinct through the external tegument, which had begun to 

 be separated from the surface of the old segments, to which up 

 to this period it had closely adhered (Fig. 6). The patch on 

 the side of the seventh segment had become darker, and the 

 new segments were further advanced. On the twenty-first day 

 the young Jiilid(2 still remained coiled up and perfectly quiescent, 

 with their legs placed side by side along the under surface of 

 the body, like the pupre of lepidopterous insects. The new legs 

 had increased in size as well as the whole animal, although it 

 had not taken food. The animal was still partly coiled up, but 

 the skin that covered its body was greatly distended, more 



