from The Century Dictionary.
- noun An outer or marginal part of the corium found in the hemelytra of certain heteropterous insects.
Sorry, no etymologies found.
Corium: the elongate middle section of the hemelytra which extends from base to membrane below the embolium.
Median furrow: lies between radius and media: in some Heteroptera, separates the embolium from the remainder of the corium.