Fig. 6. Distribution of hairs within 9 stimulus regions. Medium length hairs occurred primarily on the subcosta (see Fig. 4), which runs through leading edge regions 6–9. Long hairs occurred primarily on the postcubitus (see Fig. 4), which runs through trailing edge regions 1–4. (C) Schematic representation of stimulus regions 1–9 and their relationship with the principal wing veins. (A) Long hairs on the postcubitus were distributed evenly across the trailing edge regions. Note that the region 4 included the cluster of long hairs at the distal end of the postcubitus. (B) The density of medium hairs on the subcosta was greatest in region 8. Females had more medium and long hairs than males in all regions (A,B). Boxes indicate the interquartile range, containing 50% of values, whiskers indicate the range, and horizontal lines within boxes indicate the median. Where there was no variability, only the median is shown as a horizontal line.