Fig. 4

Wing lengths and numbers of female G. pallidipes captured using a stationary trap or VET. a Mean wing length for female G. pallidipes caught in the trap or VET at Rekomitjie, during approximately the last two hours of daylight on 59 days between January and December 1992, when both sampling systems were used on the same day in the same area. Catches were pooled by month. Means and confidence intervals are calculated for the pooled data and for the upper and lower halves of the distributions. b Monthly estimates for the numbers of female G. pallidipes caught in odour-baited traps as a proportion of the total captured using a stationary trap and the VET