campodeiform larva
From ZooTerms (Dictionary of Invertebrate Zoology)
Arthropoda: Insecta) A larva having the form of the thysanuran genus Campodea, elongate and flattened, with well developed legs and antennae, and usually active; said of certain active carnivorous larvae; thysanuriform larva.
campodeiform larva also oligopod larva: (