Bolton (2003) gives the following apomorphies of the Myrmicinae:
- Metapleural gland orifice a longitudinal slit or crescent, opening dorsally to posterodorsally, and not overhung by a cuticular flange or flap
- Petiole in posterior view with fused tergite and sternite equally convex, with their inner margins forming a circle
- Helcial tergite and sternite form a rough circle in frontal view, their apices meeting end to end, and the tergite not overlapping the sternite
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