284 APPENDIX I. 



excepting in a few instances, sncli as the imported 

 Cabbage butterfly, whose chrysalids can be found in only 

 too great abundance beneath palings or on the under 

 edge of clapboards on farm houses ; those of the blues 

 and their allies may often be found beneath stones, but 

 one must be an enthusiast to follow the search at all 

 successfully ; such as fall into the hands of the general 

 entomologist must be counted as clear gain ; yet these 

 will often repay him who studies also the parasites of 

 butterflies, so often are they found to be infested. 



The preservation of chrysalids with their colors is 

 easy for all that are not of some green tint ; and these 

 are few. Long-lived chrysalids are not easily killed ex- 

 cepting by extreme dryness. Some will survive a 

 twelve hours' plunge in alcohol, and those that could 

 not would generally lose some of their colors by the im- 

 mersion. Dry heat is the best method, but it should 

 be accompanied after death by further drying after an 

 opening has been made into the body, lest the contents 

 should decay. Parasitized specimens form the best 

 material for the cabinet, but even shells from which 

 the inmate has escaped can by careful manipulation 

 and a little glue have their separated parts so joined 

 as to answer fairly the desired purpose. Solid speci- 

 mens can be pinned through one side of the thorax, 

 but the mere pellicle should have the hooks of the tail 

 securely fastened to a little ball of cotton wool or bit 

 of felt, through which the pin may be passed. It is not 

 easy to glue empty chrysalids permanently to cards, and 

 these are very apt to hide the parts one wishes at some 

 future time to examine. Skilful persons may attain 

 some success with thin-skinned chrysalids, like that of 

 the Monarch, for instance, the shape of which is difficult 

 to retain, by removing the contents through a small 

 opening at one side and stuffing with cotton. 



The best form of net for the capture of butterflies is 

 a bag fastened to a hoop or ring of some sorb, to which 

 a handle may be attached. The hoop should be made 

 of galvanized iron wire, forming a circle about twelve 



