Most of them parasitize (winter) insects and produce fruiting bodies (summer) on the carcass of insects that become hosts. A fruiting body has two parts, a head and a stem, and bulges into a spherical, spindle-shaped, spatula-shaped, etc., and forms a number of ascomyx on the surface or under the epidermis. Cordycepin, adenosine, mannitol, B1B2, medium polysaccharide, ergosterol, melitonin, serine, glycine, etc.
