humeral plate
From ZooTerms (Dictionary of Invertebrate Zoology)
tergum and supported by an arm from the pleural wing process.
humeral plate: 1. In Odonata, a large plate hinged to the
2. In Hymenoptera (wasps and honey bees), a small plate separated from the metanotum anteriorly and laterally which bears the anterior notal wing process of the hind wing.
3. In mosquitoes, an anterior preaxillary sclerite of the wing base supporting the costa.