how long does a goliathus goliatus larvae take to molt?

For the graph. Not sure about the number on the left. It might be lengths or weights.
Each line is a grub.  The big circle shows they started to wondering at about 200 days. The 2 smaller circles.  One die after 491 days and the other one  broke out of the pupa cell at day 821.
 
High protein. Feed every other day. If too much food it will go bad its a waste. Larvae to pupate is about 5 to 10 months. 21 to 27 Celsius. Add water to dry food. 

克=grams

天=days
 
So some larvae developed longer than 2 years? That's crazy. In my experience g.g have the fastest developing time and usually start wandering within 7-10 months. There could be some "sleepers" which for some reasons do not want to start wandering with the main group and can stay for another few months, but never for 2 years :)  The conditions were probably just too good, that the larvae did not want to pupate :)  

 
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