Definition of "antennæ"

But it is chiefly in the interesting family Chalcídidæ that we find the greatest number of species having ramose antennæ.

1837, J. O. Westwood, “Art. VIII. Description of a new Genus of British parasitic Hymenopterous Insects.”, in Magazine of Natural History, and Journal of Zoology, Botany, Mineralogy, Geology, and Meteorology, Longmans, page 258