frontal suture
From ZooTerms (Dictionary of Invertebrate Zoology)
Revision as of 23:34, 13 September 2013 by Andreas Plank (Talk | contribs) (1 revision: import_simple_(-definition))
frontal suture: 1. One of two sutures arising at the anterior end of the coronal suture which extends ventrad toward the epistomal suture.
2. In Diptera, a suture shaped like an inverted “U”, having the base crossing the face above the bases of the antennae, and the arms extending downward on each side of the face; a ptilinal suture.
