ANATOMY AND 1'HYSK >!,< ><; Y 



it may be inlVrrnl lhat tin rnois- 



turc through l he <lelicat- mi.^iiment of these inse< ; iferenceis 



V. , , 



FIG. 97. Hairs and scales of a moth, Samia cecropia. 



supported by the fact that none of the scaleless Collembola can live 



in a dry atmosphere; they soon shrivel and die even under conditions 



<)&. Development of butterfly scales. 

 A. \ anessa; B, Anosia. b, basement mem- 

 brane; /, formative cell; h, hypodermis; s, 

 scale. After MAYKK. 



PIG. 99. Androconia of butterflies. A, 

 1'ifris rapce; B, Everts comyntas. 



of (IryiH-ss which tin- scaled species are able to withstand. In Lepidop- 



tcra tlu- sruUs an- possibly of some value as a mechanical protection; 



