Invasive Stink Bugs and Related Species (Pentatomoidea)

Diapause in Pentatomoidea 533

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Da

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20°C

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FIGURE 11.16

Effect of photoperiod and temperature on body coloration of adults of the southern green stink bug,

Nezara viridula

, from Osaka, Japan (34.7°N). Nymphs were reared

to adults and then maintained under constant experimental conditions indicated in the figure: photoperiod is indicated in the center; temperature was 20°C (left) or 25°C (right). The body color of adults is shown as follows: light sections of bars: green; shaded sections of bars: intermediate coloration; black sections of bars: brown/russet. Note that normally brown/russet coloration of adults is associated with diapause (see text for details). (From D. L. Musolin and H. Numata, Physiological Entomology 28: 65–74, 2003, with permission.)