- a longitudinal vein in the anterior portion of the wing of an insect.
Origin of subcosta
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for subcosta
Accessory subcostal vein: the vein given off from the subcosta and branching toward the apex of the wing in Perlidae.
Recurrent vein: in Hemerobiidae, the first branch of the subcosta when it recurves toward the base of the wing.
Setula: a small stiff bristle or seta: in Diptera, the small thorn at the end of the subcosta.