12 Introduction 



and so on to the pupae, these being removed to a cage for 

 hatching. 



As the larvae in the first cage change they are passed through 

 the other cages. 



As successive changes are made specimens should be removed 

 for fixation and preserving, and a brief description of the 

 coloration in the last instar should be made. 



The cage numbers used for the first series bred will be 1, 

 l'l, 1"2, etc., the decimal showing which stages have been 

 passed through. The next series bred will be 2, 2.1, 2.2, 

 etc. These numbers must be put on the labels accompany- 

 ing preserved specimens. 



Always note when hatched from the egg. 



11. Beeeding. 



It is very desirable to obtain the 3 and ? for eggs and 

 larvae, so that one can be sure they have not paired with 

 any other form. 



The parents must be included in the batch of specimens bred, 

 other specimens being kept, no matter in what condition 

 they may be, and the dates of emergence should be noted. 



A pair should be used to keep eggs for future generation, 

 and as many generations should be bred as convenient, but 

 at least three or four. Each generation should be kept 

 separate. 



12. Kecords. 



Each package of specimens for transit home must bear a 



number corresponding to one in a book. 

 This book shall have numbered pages with a tear-off original 



and carbon copy. 

 The page number will be the number of the collection. On 



it will be written contents of package, where collected, 



number of specimens and any notes desirable. 

 The tear-off page will be sent in covering letter. 

 All letters will be written in similar carbon duplicate book 



with page numbers. 

 Labels can be written with waterproof Indian ink. 

 Carry a good scale map and chart the collecting grounds ; also 



route taken. 



