Malpighian tubule system
![Stylised diagram of insect digestive tract showing malpighian tubule (Orthopteran type)](/Images/godic/202501/25/Malpighian_tube.svg5813.png")
![Malphigian tubules of a dissected cockroach, indicated by yellow arrow. Scale bar, 2 mm.](/Images/godic/202501/25/lossy-page1-220px-Malphigian_tubules_of_a_dissected_cockroach.tif5813.jpg")
![Arachnocampa luminosa larvae](/Images/godic/202501/25/Arachnocampa_luminosa_larvae5813.jpg")
The Malpighian tubule system is a type of excretory and osmoregulatory system found in some insects, myriapods, arachnids, and tardigrades.
The system consists of branching tubules extending from the alimentary canal that absorbs solutes, water, and wastes from the surrounding hemolymph. The wastes then are released from the organism in the form of solid nitrogenous compounds. The system is named after Marcello Malpighi, a seventeenth-century anatomist.