I assume that the RNA will be isolated from complete larvae?
Proper normalization methods for microRNA qRT-PCR have been a topic of debate. What I read a lot is that the small nuclear RNA U6 is used as normalizer; perhaps you can check if this RNA is stable and thus adequate for normalization?
Thank you for your response , i was going through some of the paper and they were using Small Nuclear RNA like U5,U6 or U1 , I will try all three and see if it will work .