684 



0. B. HARDENBERG. 



As the males are emerging^ during a period of about six 

 weeks, it follows that the hatching of the young caterpillars 

 also stretches over a similar period, namely from the middle 

 of August until the beginning of October. 



The life-cycle of the species may be briefly represented by 

 the accompanying diagram (text-fig. 6). 



The Wattle Bagworm has been discussed at some length, 

 because it is by far the most important from an economic 



Text-fig. 6. 



— Z<yvo€ O Pc/poe -4- J777cra/nee » J^pfs 



Acantliopsyche junodi (Heylaerts). 



Note. — The ahove diagram sJiows the development of the entire 

 generation, not of one particular brood. 



point of view, and as such has been studied in greater 

 detail than the other Psychidaa, and also because its life- 

 history is typical of the famih'. Of the remaining members 

 of the family, as also of the bagworms of the other families, 

 our data are as yet more incomplete, and therefore these 

 species must be treated more briefly. 



