Entomology definition of Median cell: in Lepidoptera, is the closed area formed
by a line extending from the end of subcostal to the end of the
median veins, = radial (Comst.): in Hymenoptera, 1st median
(Pack.), = medial (Comst.); 2d median (Pack.), – medial 4
(Comst.); 3d median (Pack.), = medial 2 (Comst.); 4th median
(Pack.), = medial 1 (Comst.).