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the anterior termination of the face, particularly in Hymenoptera, often separated from the front by a suture, and often elevated, sometimes gibbous; it is very obvious in Vespa and the kindred genera; it has no relation with the organs of smelling; it supports the labrum.
Ãâó: www.biology.lsu.edu/heydrjay/ThomasSay/terms.html
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