subcosta
/ˌsʌbˈkɒstə/Entomology
noun
A principal vein in the basic pattern of insect wing venation, located in the anterior part of the wing posterior to the costa and anterior to the radius.
- The nomenclature of wing veins, and their numbering, is not fully standardized across all the insect orders..
Origin
Mid 19th century; earliest use found in Catalogue Specimens Neuropterous Insects. From sub- + costa, after subcostal.