Fundamentals of Entomology

Storage Excretion

Storage Excretion
The excretory waste materials are retained within the body in different sites.
i. Uric acid is stored as urates in the cells of fat body e.g., American cockroach.
ii. Uric acid is stored in the body wall, giving white colour. e.g. Red cotton bug.
iii. Uric acid is stored in the male accessory glands to produce the outer coat of spermatophore, which is excreted during copulation.
iv. Uric acid is stored in the wing scales giving white colour. e.g., Pierid butterflies.
v. Waste products of pupal metabolism (Meconium) is stored and released during adult emergence.