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Subcostal crossveins: in Odonata, are between subcosta and media on the basal side of the first antecubital.

Setula: a small stiff bristle or seta: in Diptera, the small thorn at the end of the subcosta.

Antenodal cross veins: Odonata; extend between costa and subcosta, and between subcosta and media, from the base to the nodus, forming the ante-nodal or ante-cubital cells: = ante-cubital.

Antenodal costal spaces: Odonata; the cells between costa and subcosta, from the base to the nodus: = ante-cubitals.

Antipodal costal spaces: Odonata; the cells between costa and subcosta, from the base to the modus; = antecubitals.