Characteristics

The Dacetini shares the following synapomorphies with the other members of the dacetine tribe group (Bolton 2003):

• Head anterior to antennnal sockets strongly narrowed from side to side
• Masticatory margins of mandibles oppose but do not overlap when mandibles fully closed
• Trigger hairs on labrum or mandible
• Specialized labral shape
• Preocular carina present

In addition, the tribe has the following apomorphies:

• Mandible with a medially projecting cuticular basimandibular process on inner margin close to base (an extrusion of the mandible)
• Dorsum of labrum with one or two medial impressions that receive the basimandibular processes when the mandibles are fully closed