Comprehensive Description

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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

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