1957). Eonymphal diapause is in this period usually finished and the post- 

 diapause development that follows may be externally recognized by the growth 

 and pigmentation of the so called pupal eyes. The stage being morphologically 

 and physiologicallj^ clearly defined I propose to use a special name for it — 

 the mesonymph. 



Table 1 



Oxygen consumption, cytochrome oxidase and succinic dehydrogenase 

 activity during diapause and non diapause development in Cephalcia abietis L. 



mm^ 02/gram/hour 

 700- 



600- 



500- 



400- 



300 



200 



100 



eonvmph 



neson. I pron. . 



8 12 



days after the last larval moulting 



20 



Fig. 1. Respiratory metabolisni during metamorphosis of eonymphal, mesonymphal, 

 pronymphal and pupal stages which is common for the non-diapause development in se- 

 veral sawfly species (After Slama, 1958). 



196 



