Vol. xxiv] 



ENTOMOLOGICAL NEWS. 



17 



If the averages of the post-embryonic developments of the 

 male walking-sticks which molted five times under nearly nor- 

 mal conditions are compared in the following table with those 

 of the male specimens that passed through four molts while 

 exposed to a low temperature, it will be seen that the former 



TABLE IV. 



STAGES IN DAYS BETWEEN MOLTS OF DIAPKEROMERA FEMORATA 

 REARED DURING THE SOMEWHAT COLDER MONTHS OF APRIL, 

 MAY AND THE EARLY PART OF JUNE. 



required about the same amount of time (46.8 days) as tlie 

 latter (47 days). The female, which under nearly normal 

 conditions cast its skin six times, required 53 days to com- 

 plete its post-embryonic development, while the females which 

 molted five times, while kept in a cold temperature, required 



