2Sf ZOOLOGY. 



web, just sufficient to suspend themselves by ; many Moths, 

 like the Silk- Worm, spin a large web, in which they enwrap 

 themselves; and a great number burrow into the earth, 

 Tfhere they either spin a case, or change without any spin- 

 ning; as do most of the Hawk Moths : it will therefore be 

 necessary to cover the bottom of the box with fine mauld, to 

 the depth of several inches, and to keep it constantly moist. 

 Previous to going into the chrysalis, Caterpillars generally 

 lose their brilliancy of colour, and some rove about for a 

 considerable time. After remaining in the Chrysalis state 

 till near the time of their coming forth, such as are inclosed 

 in a hard case or shell, as the Puss, and Oak Moths, 9cc., are 

 to be carefully freed from it, as the aperture which the 

 Insect naturally makes, is often so small as not to peimit it 

 to pass out without injury to its plupiage. 



Butterflies and Moths may be found in the Chrysalis stafe, 

 under projections of Garden walls, pales, in Summer and 

 Outhouses, and frequently attached to their food. A great 

 variety of Moths in this state, may be found by digging in 

 the Autumnal and Winter months, under the trees they feed 

 on, particularly under the oak, willow, lime, elm, and 

 poplar trees ; as also at the bottom of posts and garden 

 pales ; when they are dug up from these situations, they 

 should be placed as soon as possible in a box, and kept 

 covered with moist earth till the ensuing spring, when they 

 are to be taken up and placed just beneath the surface of the 

 mould, and in that manner left to come forth themselves. 



In digging for Chrysalises, it often happens that the col- 

 lector finds numerous species of Beetles, who retire to such 

 dormitories daring the winter. 



