subcostan.
/ˌsʌbˈkɒstə/, U.S. /ˌsəbˈkɔstə/, /ˌsəbˈkɑstə/ Entomology.
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.
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the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [noun] > wings(s) > nervure
vein1658
nerve1752
venule1806
nervure1817
riba1836
subcosta1852
cubitus1895
media1895
cubit-
1852 Catal. Specimens Neuropterous Insects 507 Transverse veins between the costa and the subcosta distinct.
1895 J. H. Comstock & A. B. Comstock Man. Study Insects xv. 181 The wings mottled with dark brown or smoky specks, and with some of the veins between the costa and subcosta forked.
1965 J. D. Carthy Behaviour of Arthropods ii. 24 These groups are located generally on the radius vein of the upper surface and the sub-costa of the lower surface.
2000 R. Dudley Biomech. Insect Flight. (2002) ii. 53 Most anteriorly, the leading edge of the wing is defined by the costa and the subcosta, thickened veins that provide structural rigidity.
This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022).
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n.1852