Malpighian a. : Of, pertaining to, or discovered by, Marcello Malpighi, an Italian anatomist of the 17th century.

Example:
What is the brown pigment in the Malpighian layer of skin called?

Taxonomy
tubules, Malpighian tubules, Malpighian tubule system, insects, wastes, hemolymph, free encyclopedia, rectum, Arachnocampa luminosa, solutes, insect orders, The Insects, hindgut, accessory, urine, walls, uric acid, potassium ions.

Defination from the web:
Malpighian tubule system is a type of excretory and osmoregulatory system found in some Uniramia (Insects and Myriapoda), arachnids and tardigrades. ... Malpighian tubules are slender tubes normally found in the posterior regions of arthropod alimentary canals. ...