I’m not quite sure how this would work technically. The insect life stage annotation only appears for entry after an id of an insect has been entered.
You’d basically have to enter an id without the benefit of it, go enter the larva or whatever lifestage, and then go back and rerun the computer vision suggestion a second time.
For a point of clarification, pics of larva etc are not excluded from the teaching model, they are in the set for any species. In fact, the tool seems to do a very good job (at least for the Canadian stuff I observe) if presented a photo of a caterpillar etc of correctly identifying it.