Lacewing antennas are arbout the same length as the body, excluding the wings. Like the rest of the lacewing, they are a pale green color. They are typically held in a v formation above and to either side of the body.

Like many insect antennas, lacewing antennas start out fairly wide and very gradually taper toward the end with each segment being just slightly narrower than the one before it. The final segement is kind of a rounded cone shape with an elongated point at the top.
As with the wings, the penetration of mountant was incomplete and uneven, and this can been seen in the uneven preservation of the antenna.