clypeusn.
/ˈklɪpɪəs/, U.S. /ˈklɪpiəs/ Entomology.
The broad shield-shaped part of the head of some insects which bears the labrum or upper lip.
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the world > animals > invertebrates > phylum Arthropoda > class Insecta > parts of insects > [noun] > head > mouth-parts or trophi > clypeus
nasus1826
clypeus1831
anteclypeus1883
1831 H. McMurtrie tr. P. A. Latreille in G. Cuvier Animal Kingdom IV. 192 The Zygænæ are not found in the western continent... Their inferior palpi extend beyond the clypeus, and are pointed at the extremity.
1871 C. Darwin Descent of Man I. x. 370 A most remarkable distinction between the sexes of many beetles is presented by the great horns which rise from the head, thorax, or clypeus of the males.
This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2022).
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n.1831