Malphigian Tubules are absent in

Answer: Option C

Malphigian Tubules are absent in Aphids.
The Malpighian tubules are tubular epithelia that are diverticulae of the gut itself. Posterior to the midgut, most insects possess a segment of gut referred to as the ileum.
Malpighian tubules are near-universal in insects. Exceptionally, they are absent from the aphids (Aphidoidea), in which the gut comprises a tube without any discernible evaginations. Aphids are plant phloem sap-feeding insects of the order Hemiptera.