LEFIDOrTEROUS INSECTS. 19 



illars, which were hatched from eggs the 12th of 

 "uly, in the following order. Their first casting of the 

 kins occurred on the 14th, the second on the 17th, 

 the third on the 21st, and the fourth on the 26th. 

 Fhey then continued to eat and grow till the 15th 

 f August, when, having completed their growth, 

 and reached their full age as caterpillars, they left 

 ff eating, and prepared for entering upon their 

 econd stage of life, namely, that of chrysalis, which 

 las no resemblance to the caterpillar. This change 

 ook place on the 17th of August. 



" It hence appears, that the first stage of life, or 

 he caterpillar state of this insect, only lasts for five 

 omplete weeks ; but I must remark, that in rear- 

 ng the caterpillars for the purpose of observing their 

 tianges, they must have fresh food every day, and 

 n a warm day twice, otherwise they will not 

 thrive. 



e< The cover of the box where they are kept, 

 ought to have small holes in it for the admission of 

 fresh air ; or it may be covered with crape or gauze. 

 It ought not to be shallow ; for if so, the wings of 

 the butterfly, when it comes forth, may be bent or 

 injured. 



" We have thus seen our insect in its first stages 

 of life -, but it is destined to arrive at a higher stage 

 of existence, and is born to be admired, though it 

 does not reach this stage till it has undergone sick- 

 ness and suffering, with hardly any apparent sign 



