Linked from
The 32 pages that link to Larva, each with the reason it gives.
TadpoleNarrower topic: A tadpole is a specialized larval form rather than a small adult frog.
CaterpillarNarrower topic: Caterpillar names the larval form specific to moths and butterflies.
CocoonNarrower topic: The larva constructs the cocoon before entering pupation.
PlanulaNarrower topic: The planula is one specialized example of an animal larva.
PsychodidaeNarrower topic: Psychodid larvae feed and grow in moist substrates before pupation.