NO. lO MORPHOLOGY OF GN ATUOTRICHUS SCHEDL 85 



each. These setae are situated near the cephalad margin of the hyixj- 

 pleurites. 



The eighth pleurite resembles even in the young pupa more that of 

 the adult than of the larva. No subdivisional plates are visible and 

 no setae occur. The spiracle is situated on the laterocephalad angle 

 of the united tergo-pleural plate. 



The caudal spine (Hopkins), most probably represents the only 

 external remainder of the ninth abdominal segment of the larva and 

 it is in the opinion of the author a greatly enlarged seta of the pleural 

 area. 



Steniites. — In the young pupa the same number of sternites occur 

 as visible tergites, namely eight. The first two sternites are pres- 

 ent as two short plates dorsal to the metasternum. They disappear 

 when the pupa becomes older. The sternites three to seven are fully 

 exposed and have the shape of small sclerites in the adults. The eighth 

 sternite is visible as two half circular lobes which indicate the future 

 development of the spiculum ventrale. None of the sternites bear 

 setae and also no subdivisional plates are recognizable. 



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