MARCH. 61 



for support. The caterpillars of Hawk- Moths are in the 

 latter respect similar to those of the Butterfly ; but the 

 prolegs of Moth larvae vary both in number and structure, 

 though the anterior legs are always of the same number as 

 in the Butterfly, the most conspicuous being provided with 

 ten prolegs, others with eight, six, four, and some of the 

 smaller kinds with only two. The colour of the caterpillars 

 varies so much, that no distinction can be drawn from it : 

 that of the Hawk-Moth is sometimes very showy, green 

 being a prevailing hue, which is often varied with oblique 

 stripes of yellow, blue, or purple. The larvae of these in- 

 sects are generally smooth, or covered with hard grains like 

 seal-skin, and have a long horn near the extremity, some- 

 what curved and bent back. Many caterpillars of the diurnal 

 Lepidoptera are also smooth, but in some cases they are 

 covered with long hairs and spines, which latter appendages 

 will, in some instances, pierce the skin, and in some foreign 

 species, sting like a nettle. 



The chrysalides vary equally with the larvae and the per- 

 fect insect. Those of the Butterfly attach themselves to 

 walls, posts, or trees, and after selecting an appropriate situa- 

 tion, the animal commences its curious proceeding. As they 

 are suspended in two different ways, either perpendicularly 



