Figure 5. Distribution of functional and non-functional trichoid sensilla on the antennae of male H. armigera and H. assulta.

(A) Map of functional and non-functional trichoid sensilla on the antennae of male H. armigera and H. assulta (A). The whole antenna was divided into three parts, containing annuli 1–20, 21–50 and 51–70 Black circles indicate trichoid sensilla which did not respond to any of the stimuli applied. Red circles rounds indicate trichoid sensilla with responses to one or more ligands. (B) Percentages of functional and non-functional trichoid sensilla on the antennae of male H. assulta and H. armigera. Each annulus is divided in the middle, the left part being the distal and the right part the proximal region. Error bars indicate SD (n = 5).