the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [adjective] > of wing(s) > of or relating to nervure > relating to or of nature of costa > situated behind or near (2)
Situated behind a rib; (Entomology) designating the vein of an insect's wing immediately behind the costal vein.
Entomology. Situated behind the anterior or costal margin of an insect's wing; spec. designating a vein (cf. subcosta, n.), or a branch of this.