THE CHRYSALIS. 37 



of spines, so common in the caterpillars, or of 

 hairs, excepting such as are microscopic ; there 

 are no movable appendages whatever. 



We mentioned certain features in the body of 

 caterpillars as dividing that portion into two 

 tracts, foreshadowing the separation of thorax 

 and abdomen in the perfect insect ; but here, in 

 the intermediate stage, even the wide distinction 

 between head and body is lost, and the whole 

 creature appears in one compacted form, the im- 

 pressed lines marking the boundary between head 

 and thorax or thorax and abdomen being no more 

 distinct than those separating any other two seg- 

 ments. In the general contour of the surface, how- 

 ever, the thorax is distinctly separated from the 

 abdomen ; while the head is seldom separated in a 

 similar way from the thorax [Fig. 

 49] ; thus our new acquaintance is 

 represented by tvvo oval masses 

 placed end to end and blended, the 

 front portion representing the head- 

 trunk or cephalothorax and the hind 

 portion the abdomen. The append- 

 ages of the chrysalis are all encased FlG 49._ C hrys- 

 in separate sheaths, which, when it opa, f P nat. 10 ^ze 



n *ii (Harris). 



first emerges from the caterpillar 

 skin, can readily be separated from one another, 

 but afterward become consolidated with the rest 

 of the integument, and are neatly folded over the 



