No they do not.
Larvae or nymphs
They are all cycles of insect growth!
No. While snakes do have young, they are not called larvae.
The name of baby dragonfly is Nymphs. Before Nymphs they are called Larva.
Dragonfly larvae, or 'nymphs', are predatory and will eat small fish!
Pupae, larvae, and nymphs are different stages in the life cycles of insects. Larvae are the immature, often worm-like stage that hatches from eggs and undergoes significant growth before transforming. Pupae are a transitional stage where the insect undergoes metamorphosis, typically encased in a protective shell, during which it transforms into its adult form. Nymphs, on the other hand, are immature stages of insects that undergo incomplete metamorphosis, resembling smaller versions of adults and gradually developing into their final form without a pupal stage.
Larva for holometabolous insects (form a cocoon and change form completely), nymph for hemimetabolous ones (just grow bigger and get wings as they grow, don't change form altogether). Separate, more familiar names also exist; caterpillars are butterfly larvae, maggots are fly larvae, grubs are beetle larvae, and so on.
life span
No, cicadas are not carnivorous. Both the larvae (nymphs) and adults feed on plant sap.
Larvae means its wingless, or its the feeding stage for when an insect has completed metamorphisis, an animal in analogous immature form, the young of any invertabrate
Northern water snakes are eaten by a variety of predators, including birds of prey such as hawks and owls, larger fish like bass and pike, snapping turtles, and mammals such as raccoons and mink. Their predators generally vary based on their habitat and size.
Kenneth W. Stewart has written: 'Nymphs of North American stonefly genera (plecoptera)' -- subject(s): Larvae, Nymphs (Insects), Stoneflies