Sensilla trichodea were most abundant.
These were found on all the segments of
the antenna. These were 0.83 times as
many on the upper side as on the under
side. This type of sensillum was ultrastructurally
segregated into types A, B and CD
(figs 7-9). Sensilla trichodea A had a blunt
tip (fig 9, inset). Sensilla trichodea B occurred
in sharply bent forms. Sensilla trichodea
CD type were curved. Sensilla
basiconica were less visible at the apex.
They were lodged in a distinct socket and
were thick with blunt depressed tips, probably
indicating a pore (fig 10).