epistomal sulcus or suture
The groove situated between the frons and clypeus that unites with the anterior ends of the subgenal sulcus extending to the anterior tentorial pits.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • frontoclypeal sulcus or suture — see epistomal suture …   Dictionary of invertebrate zoology

  • clypeus — n. [L. clypeus, shield] 1. (ARTHROPODA: Chelicerata) The anterior tagma between eyes and cheliceral bases in arachnids. 2. (ARTHROPODA: Crustacea) That part of the head bearing the labrum. 3. (ARTHROPODA: Insecta) The sclerite on the lower part… …   Dictionary of invertebrate zoology

  • frontoclypeal area — (ARTHROPODA: Insecta) The front of the head, that is divided by the epistomal sulcus (or suture) into the frons above and the clypeus below …   Dictionary of invertebrate zoology

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