Figure 9 A–E. Daily changes in the percentage of P. japonica adults above litter in the outdoor enclosure containing 20 individuals. Each histogram represents the mean percentage of insects at that hour averaged over all the days of that specific period. Bars indicate one SD. F. The relationship between the daily maximum number of P. japonica adults above the litter surface and various daily maximum temperatures in the outdoor enclosure from Feb. 6 to 25. T-1 = temperature at the bottom of litter; T-2 = temperature on litter; AT = air temperature, shade. G. The relationship between the numbers of P. japonica adults above litter and temperatures at 18:00 in the outdoor enclosure from Feb. 27 to Apr. 12. T-1, temperature at the bottom of litter; T-2, temperature on litter; AT, air temperature, shade.