What is the Type B metamorphosis?

The first case of Type B metamorphosis was found in 1924 in Holland by Pieter Huizinga. We couldn't find any of his record other than his name. His report was very precise and accompanied by accurate illustrations. The Type B metamorphosis was discovered deceased and dried in infant larva form. With his sharp observation, he noticed several major differences between the Type B metamorphosis and common caterpillar fungus. He published his thesis in an entomology magazine the next year, however no one believed it was not a mislocated mutation of the common caterpillar fungus. After several other cases were reported, including live samples, the world became aware of its existence. It is true that the Type B larva is in the greatest danger during ecdysis because of a newly grown sprout on its back. If it is found in the dried condition of this stage, it would be hard to distinguish it from common caterpillar fungus. It is possible that there could have been more discoveries of Type B before 1924, but simply mistaken for common caterpillar fungus.
Type B is considered as an insect and classified in Insecta (Animalia kingdom) in spite of the fact that it spends most of its lifespan as a plant.