8 genera in 4 tribes worldwide; 5 spp. in 2 genera of 2 tribes north of Mexico(1)(2)
Labeninae in our area can be recognized by their red bodies with yellow markings, elongate mesoscutum, yellowish antennae (with or without black banding), elongate hind coxae, and orange-yellow ovipositor sheath.
Our two genera of Labeninae are separated as follows:(3)
Grotea (tribe Groteini): exposed labrum, vein 2m-cu of the fore wing with two bullae, multiple basal hamuli on the hind wing, shorter ovipositor length of between 1-3x the length of the hind femur.
Labena (tribe Labenini): labrum mostly concealed by the clypeus, vein 2-Cu of the fore wing > vein 2cu-a, a single basal hamulus on the hind wing, longer ovipositor length comparable to the length of the abdomen.