Polyhedrins are proteins that form virus

Virus

A virus is a small infectious agent that can replicate only inside the living cells of organisms. Viruses infect all types of organisms, from animals and plants to bacteria and archaea...

 occlusion bodies, large structures (polyhedra) that protect the virus from the outside environment for extended periods until they are ingested by insect

Insect

Insects are a class of living creatures within the arthropods that have a chitinous exoskeleton, a three-part body , three pairs of jointed legs, compound eyes, and two antennae...

 larvae

Larvae

In Roman mythology, lemures were shades or spirits of the restless or malignant dead, and are probably cognate with an extended sense of larvae as disturbing or frightening...

. They occur in various viruses including the single nucleocapsid nuclear polyhedrosis

Nuclear Polyhedrosis Virus

The nuclear polyhedrosis virus which belongs to the sub group Baculoviruses is a virus affecting insects, predominantly moths and butterflies. It has been used as a pesticide for crops infested by insects susceptible to contraction...

 viruses and granuloviruses. The structure of polyhedrin comprises multiple beta strands, three alpha helices, and two pi helices. The resolution is 1.84 Angstroms. Ramachandran Plot