Indusium: the case made by an insect larva: a membranous layer of the embryo of Locustidae below the serosa. Explanation of Terms Used in Entomology John. B. Smith. serosa: the outer membrane that envelops the forming embryo, the amnion and the remainder of the egg. Explanation of Terms Used in Entomology John.
They are typically quite itchy and have been known to cause a prickly or burning sensation - especially if touched. Stress hives can appear on any part of your body (face, hands, feet, arms, etc.) and can vary in size from as small as the eraser on a pencil to as large as a dinner plate. Stress hives, like a typical hives rash, have been known to spread from place to place, and smaller areas of hives can blend together to create larger areas known as plaques.
4. Impetigo. You may develop itchy rash all over body due to a contagious skin disease called impetigo. Caused by streptococcal or staphylococcal bacteria, the disease affects the face and other exposed areas of your body. You will notice superficial blisters all over your body that will be filled with pus.