40 CATERPILLARS AND THEIR MOTHS 



small sphingid piipag which we were not able to iden- 

 tify, we put them in different boxes, to be sure which 

 pupa gave which moth. 



Caterpillars found out of doors should be described, 

 numbered, and recorded in the same way, unless they are 

 so well known that no notes are needed. In recording 

 a brood of caterpillars one box should be selected, and 

 the dates given should be those of the first specimens 

 to hatch, molt, pupate, etc., that the record may be 

 true of the length of individual stages. The eggs laid 

 the first night usually hatch first, and the first cater- 

 pillars usually pass through their stages normally, 

 while those from the last eggs vary more. This may 

 not be a recognized rule, but we have found it to be 

 the case in many instances. 



To pack living caterpillars for transportation from 

 one place to another, a tin box of suitable size should 

 be chosen. It should be a stout tin, not easy to bend 

 or dent. Into this should be put as many twigs and 

 leaves of the food-plant as it will hold, after they have 

 been in water for an hour or two. Putting the twigs 

 in water, like flowers, keeps their leaves fresh for the 

 journey. The caterpillar, or caterpillars, should be 

 put in among the twigs, and the box closed over a bit 

 of scrim and wrapped in heavy brown paper. There 

 should never he any holes in the box or imper. We have 

 sent hundreds in this way without any injury. 



Living moths may be sent in tin or wooden boxes 

 with a twig to which they can cling, but they often 

 die by the way. We have received moths, sent in this 

 way, apparently dead, and have had them revive when 

 the box was opened and air admitted. Spread speci- 



