NOT SUFFICIENT. “Paradoxes exist, however, in the many examples of apparently closely related larvae giving rise to apparently distantly related adults, and the less common examples of apparently distantly related larvae giving rise to apparently closely related adults. Conventional explanations, when they exist, invoke either convergent evolution or larval conservatism.”
https://books.google.es/books?hl=en&lr=&id=4Bv_CAAAQBAJ&oi=fnd&pg=PR3&dq=evolution+of+larval+stage&ots=Ajv40BxpV8&sig=UoAuSNQhyUJxvYurqij18mPF3GM