coriaceous

Two lateral lamin, often coriaceous, by which the ovipositor when unemployed is covered.

The upper organs of flight, when they are corneous or coriaceous at the base and membranous at the apex.

I find a copying press very valuable in making the impression, especially if the leaf is at all coriaceous.

The coriaceous part of the hemelytra is of a purple tint, but the membranous part is brown.