until a Mirticii'iit Inia'th lias luaai spun, attaclu-s it to the 

 opositc side; this operatiiui is rciH-atfd until a dozen or 

 more strands pass from side to side. The eateriiillar then 

 passes its head under the silken thread and Avriggles up 

 until they support the bod\' about uiidwav. This silken 



BI-ACIv SWALI.OAV-TAII. i Pavilio asterias) 



loop and the cushion ]iad are now its only sup]iorts. The 

 creature remains at rest with head bent forward for about 

 twenty four hours, then the body eounnenees to twitch; 

 the skin has become dry. it cracks and splits and the 

 hir\'a moults for the last time, losing the jiro-legs from 

 this liind end of the bod)'. It has assumed the typical 

 chrvsalid form, the outer skin hardens, turns green or 

 wood-colored and the creature remains at rest for a period 

 of ten to t^^■enty days.-- that is, if the caterpillar was of 

 an early brood: later ones of course ]iass the winter in the 

 chrvsalid state. 



